Plagiarism Checker by Grammarly

Example of how Grammarly detects plagiarism

Plagiarism Checking

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Why use a plagiarism checker, how does grammarly’s plagiarism checker work, who benefits from grammarly’s plagiarism checker.

“ I absolutely love Grammarly when writing. I especially love revising even the most mundane of lines that hit a plagiarism result, because seeing 0% plagiarism is what I live for. ”

thesis check for plagiarism

“ Essentially, Grammarly offers the same features as a thesaurus, a quality grammar-checking program, and a plagiarism checker. While you can purchase each of these tools separately elsewhere, Grammarly combines them, which is actually quite nice. ”

thesis check for plagiarism

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Plagiarism Checker by Quetext

Free plagiarism checker: how it works, enter text into plagiarism detection tool.

We make it simple. Just copy and paste all content from your document into our plagiarism checker and hit the ‘Check Plagiarism’ button to get started.


Evaluate text for plagiarism

Our plagiarism detection tool uses DeepSearch™ Technology to identify any content throughout your document that might be plagiarized. We identify plagiarized content by running the text through three steps:

  • 1.) Contextual Analysis
  • 2.) Fuzzy Matching
  • 3.) Conditional Scoring

Accurate plagiarism results

After evaluating the text against billions of internet sources, you will be provided with a plagiarism score showing the percentage of text that is an exact or near-match to existing text online.


Resolve plagiarism risk and use citations

Our ColorGrade™ feedback feature highlights exact matches vs. near-exact or “fuzzy” matches with corresponding colors. From there, you can resolve plagiarism issues by deleting or altering the at-risk copy. Or, you can use our handy “Cite Source” feature to generate citations in MLA, APA, and Chicago formats and insert the citations directly into your document.

Plagiarism Checker Benefits

Whether producing original content or verifying that of others, there’s a lot to gain from using a plagiarism checker. Accurate, automatic detection of duplicate content facilitates the copy-checking process for teachers, students, content writers, and more. Results showing the exact percentage of plagiarized content allows users to see exactly how much text has been copied and where they need to re-word.


For Teachers

Before homework can be graded for quality, it must first be confirmed as original. Our easy-to-use tool arms teachers with a simple, effective way to verify and grade students’ work. Educators at all levels can benefit from ensuring academic integrity through a comprehensive plagiarism check. From K-12, all the way through higher education, teachers are faced with the task of verifying the originality of the work of dozens, if not hundreds, of students each year. Automating this process frees teachers up to focus on the quality of work, rather than be bogged down by its originality.


For Students

While the prevalence of academic plagiarism is on the rise, much of it is arguably unintentional. A simple, yet accurate and comprehensive, plagiarism checker offers students peace of mind when submitting written content for grading. It is much easier to do a quick check for potential plagiarism before submission rather than convince a teacher after the fact that your academic integrity is not in question. And Quetext even takes checking for plagiarism a step further, helping students identify and cite the source itself with our built-in citation generator.


For Copywriters

Plagiarism risk is not restricted to academia. Anyone tasked with writing for an individual or business has an ethical and legal responsibility to produce original content. On top of that, content writers are often tasked with producing content on topics outside of their wheelhouse, leaving them reliant on the work of others for their research. Our plagiarism checker gives content writers a quick and easy method to prevent copyright infringement. Checking even lengthy pieces of writing takes only a few minutes, keeping companies’ public content in check and writers’ integrity intact.

Types of Plagiarism

It’s important to understand that plagiarism expands far beyond just copying someone else’s work word-for-word. There are several different types of plagiarism that should be avoided.

Self Plagiarism


Many believe that, as long as they produced the work at some point in the past, they can include it in future pieces. However, even if you were the original author, that original work must be cited in order to not be flagged as plagiarism. Treat your past self as a totally separate author; be sure to include all relevant citations and quotations, the same as you would for any other source.

Patchwork Plagiarism

Patchwork Plagiarism

Patchwork plagiarism is the act of piecing together a "patchwork" of existing content to form something new. Assembling unoriginal content in this manner often involves some paraphrasing, with only slight changes. This type of plagiarism can be tricky and can certainly occur unintentionally, especially in academia. Since academic writing is largely based on the research of others, a well-meaning student can inadvertently end up plagiarizing.

Mosaic Plagiarism

Mosaic Plagiarism

Mosaic plagiarism is synonymous with patchwork plagiarism. It describes the process of loosely rearranging or restating another's work without issuing proper credit. It can occur accidentally or intentionally. For authors, mosaic plagiarism endangers their academic integrity or reputation as a writer. For those checking content originality, such as teachers, mosaic plagiarism can easily appear to be original content, which can make mosaic plagiarism especially difficult to detect manually.


Accidental Plagiarism

Plagiarism doesn’t have to be intentional to still be considered plagiarism — even in early academia, where students are just learning how to properly cite others’ work. While there may be no ill intent from the student, most schools have policies explicitly treating accidental plagiarism the same as intentional plagiarism. Students are expected to know how to properly issue credit to other authors. Similarly, content writers risk damage to their reputation if they produce plagiarized content, regardless of intent.

Plagiarism Checker FAQ

What is plagiarism.

Plagiarism is representing someone else’s work as your own. In educational contexts, there are differing definitions of plagiarism depending on the institution. Plagiarism is considered a violation of academic integrity and a breach of journalistic ethics.

What percentage of a paper can be plagiarized (or copied) and still be considered unique?

Generally speaking, similar or exact copies of another source should be kept under 15% for the total text of the article/paper/essay. As a best practice, citations should be used whenever using another source word-for-word.

What’s the difference between deliberate and accidental plagiarism?

Deliberate plagiarism is purposely copying works from books, articles, webpages, or someone else’s paper and representing it as your original work. Alternatively, accidental plagiarism occurs in a few different ways:

  • Incorrectly citing another person’s works
  • Failing to paraphrase another person’s works - even when citing it correctly
  • Reusing your own previous papers and inadvertently representing it as a new idea

What are the consequences of plagiarism?

The consequences for plagiarizing another person’s works vary. But broadly speaking, the types of consequences can be grouped by person and profession.

Plagiarism consequences for students

Maintaining academic integrity is a top priority for every educational institution. As already mentioned, ignorance of how to properly cite sources is not an excuse for plagiarism. It is the student’s responsibility to ensure they are submitting work that has not been plagiarized.

Failure to do so can result in disciplinary action, including an automatic failed grade, removal from a class, or expulsion from a school or university. Students who are allowed to continue at their institution following an act of plagiarism may encounter mistrust and additional scrutiny from teachers and instructors.

Plagiarism consequences for copywriters

Copywriters stake their reputation (and by extension, that of their client or company) on their writing. All copywriters must produce completely original content for their clients.

The consequences for plagiarism here are clear: Copywriters who plagiarize the content of others will quickly find it difficult to obtain paying assignments. Similar to academic situations, it is the copywriter’s own responsibility to ensure that their content is 100% original.

Plagiarism consequences for journalists

Journalists are held to exceptionally high standards of integrity in their writing. A journalist who produces plagiarized content jeopardizes the trust of their readers and publishers. Plagiarism can instantly reduce a journalist’s career by a large margin. The ethical and legal standards issued to journalists are clear: Produce original, well-cited content or find another field.

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Why should you use an online thesis checker?

You’ve already done countless hours of research to write your thesis. You don’t want to spend countless hours correcting it, too.

You’ll sound professional

Wow your supervisors with how grammatically sound your writing is, how clear it is, and how well it flows.

You’ll save time

ProWritingAid’s thesis checker saves you hassle by acting as the first line of defense against pesky grammar issues.

You’ll become a better writer

Every time you run your thesis through ProWritingAid, you’ll see what your common mistakes are and how to fix them.

Professors and students love using ProWritingAid

Great tool for academic work. Easy to use and the reports and summary evaluation of your documents in several categories is very useful. So much more than spelling and grammar!

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If you’re an English teacher, you need to take a look at this tool—it reinforces what you’re teaching, highlights strengths and weaknesses, and makes it easier to personalize instruction.

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Only reason I managed to get an A in all my freshmen composition classes.

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Your first line of defense before submission

Save time on editing so you can focus on your research. ProWritingAid’s thesis checker helps you quickly and easily improve your grammar and style.

Academic writing made easier

Stop stressing over your first draft. Now you can improve any sentence in just a few clicks. Shorten sentences , correct informal language, expand your sentence variety, and add transitions.

Catch every easy-to-miss mistake

Typos and grammar errors can slip into anyone’s work. ProWritingAid’s AI-powered thesis checker can catch and fix even the trickiest issues so your ideas can shine.

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In-depth analysis whenever you need it

Sure, that email might only need a cursory check. But a 100-page thesis needs more comprehensive reviews. Use our structure analysis , complex paragraph alerts , and transitions report to improve your work.

Write clearly, concisely, and accurately

Strike the right balance between clarity and academic rigor with analytical language goals and power verb suggestions . You can ensure your work is professional without sacrificing readability.

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Want more? Join our community or read our blog for advice from our resident experts on how to become a better writer.


ProWritingAid’s Thesis Checker FAQs

1. how do i use the online thesis checker.

Sign up for free, upload your thesis, and run any of ProWritingAid’s 20+ reports. You’ll see a number of suggestions that you can either accept or reject.

2. Does the essay checker work with British English and American English?

The thesis checker works with British English, American English, Australian English, and Canadian English. Just choose the one you’d like to use, and ProWritingAid will tailor its suggestions to match.

3. Is using a thesis checker cheating?

Not at all. The thesis checker won’t ever write the thesis for you. It will only point out possible edits and advise you on changes you need to make. You have full autonomy and can decide which changes to accept.

4. Is there a student discount?

Students who have an eligible student email address can get 20% off ProWritingAid Premium. Email [email protected] from your student email address to access your discount.

5. Can ProWritingAid check my thesis for free?

Absolutely. ProWritingAid offers a free membership to everyone, always, and you can edit up to 500 words at a time. If you need to edit more work, you can upgrade to Premium at any time.

6. Does ProWritingAid have a plagiarism checker?

Yes! ProWritingAid’s plagiarism checker will check your work against over a billion web-pages, published works, and academic papers, so you can be sure of its originality. Find out more about pricing for plagiarism checks here .

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Free plagiarism checker by EasyBib

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Check for accidental plagiarism

Avoid unintentional plagiarism. Check your work against billions of sources to ensure complete originality.

thesis check for plagiarism

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thesis check for plagiarism

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thesis check for plagiarism

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thesis check for plagiarism

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thesis check for plagiarism

Check for unintentional plagiarism

Easily check your paper for missing citations and accidental plagiarism with the EasyBib plagiarism checker. The EasyBib plagiarism checker:

  • Scans your paper against billions of sources.
  • Identifies text that may be flagged for plagiarism.
  • Provides you with a plagiarism score.

You can submit your paper at any hour of the day and quickly receive a plagiarism report.

What is the EasyBib plagiarism checker? 

Most basic plagiarism checkers review your work and calculate a percentage, meaning how much of your writing is indicative of original work. But, the EasyBib plagiarism checker goes way beyond a simple percentage. Any text that could be categorized as potential plagiarism is highlighted, allowing you time to review each warning and determine how to adjust it or how to cite it correctly.

You’ll even see the sources against which your writing is compared and the actual word for word breakdown. If you determine that a warning is unnecessary, you can waive the plagiarism check suggestion.

Plagiarism is unethical because it doesn’t credit those who created the original work; it violates intellectual property and serves to benefit the perpetrator. It is a severe enough academic offense, that many faculty members use their own plagiarism checking tool for their students’ work. With the EasyBib Plagiarism checker, you can stay one step ahead of your professors and catch citation mistakes and accidental plagiarism before you submit your work for grading.

thesis check for plagiarism

Why use a plagiarism checker? 

Imagine – it’s finals week and the final research paper of the semester is due in two days. You, being quite familiar with this high-stakes situation, hit the books, and pull together a ten-page, last-minute masterpiece using articles and materials from dozens of different sources.

However, in those late, coffee-fueled hours, are you fully confident that you correctly cited all the different sources you used? Are you sure you didn’t accidentally forget any? Are you confident that your teacher’s plagiarism tool will give your paper a 0% plagiarism score?

That’s where the EasyBib plagiarism checker comes in to save the day. One quick check can help you address all the above questions and put your mind at ease.

What exactly is plagiarism? 

Plagiarism has a number of possible definitions; it involves more than just copying someone else’s work. Improper citing, patchworking, and paraphrasing could all lead to plagiarism in one of your college assignments. Below are some common examples of accidental plagiarism that commonly occur.

Quoting or paraphrasing without citations

Not including in-text citations is another common type of accidental plagiarism. Quoting is taking verbatim text from a source. Paraphrasing is when you’re using another source to take the same idea but put it in your own words. In both cases, it’s important to always cite where those ideas are coming from. The EasyBib plagiarism checker can help alert you to when you need to accurately cite the sources you used.

Patchwork plagiarism

When writing a paper, you’re often sifting through multiple sources and tabs from different search engines. It’s easy to accidentally string together pieces of sentences and phrases into your own paragraphs. You may change a few words here and there, but it’s similar to the original text. Even though it’s accidental, it is still considered plagiarism. It’s important to clearly state when you’re using someone else’s words and work.

Improper citations

Depending on the class, professor, subject, or teacher, there are multiple correct citation styles and preferences. Some examples of common style guides that are followed for citations include MLA, APA, and Chicago style. When citing resources, it’s important to cite them accurately. Incorrect citations could make it impossible for a reader to track down a source and it’s considered plagiarism. There are EasyBib citation tools to help you do this.

Don’t fall victim to plagiarism pitfalls. Most of the time, you don’t even mean to commit plagiarism; rather, you’ve read so many sources from different search engines that it gets difficult to determine an original thought or well-stated fact versus someone else’s work. Or worse, you assume a statement is common knowledge, when in fact, it should be attributed to another author.

When in doubt, cite your source!

Time for a quick plagiarism quiz! 

Which of the following requires a citation?

  • A chart or graph from another source
  • A paraphrase of an original source
  • Several sources’ ideas summarized into your own paragraph
  • A direct quote
  • All of the above

If you guessed option E than you’d be correct. Correct punctuation and citation of another individual’s ideas, quotes, and graphics are a pillar of good academic writing.

What if you copy your own previous writing?

Resubmitting your own original work for another class’s assignment is a form of self-plagiarism, so don’t cut corners in your writing. Draft an original piece for each class or ask your professor if you can incorporate your previous research.

What features are available with the EasyBib plagiarism checker? 

Along with providing warnings and sources for possible plagiarism, the EasyBib  plagiarism checker works alongside the other EasyBib tools, including a grammar checker  and a spell checker . You’ll receive personalized feedback on your thesis and writing structure too!

The  plagiarism checker compares your writing sample with billions of available sources online so that it detects plagiarism at every level. You’ll be notified of which phrases are too similar to current research and literature, prompting a possible rewrite or additional citation. You’ll also get feedback on your paper’s inconsistencies, such as changes in text, formatting, or style. These small details could suggest possible plagiarism within your assignment.

And speaking of citations, there are also  EasyBib citation tools  available. They help you quickly build your bibliography and avoid accidental plagiarism. Make sure you know which citation format your professor prefers!

Great! How do I start? 

Simply copy and paste or upload your essay into the checker at the top of this page. You’ll receive the first five grammar suggestions for free! To try the plagiarism checker for free, start your EasyBib Plus three-day free trial.* If you love the product and decide to opt for premium services, you’ll have access to unlimited writing suggestions and personalized feedback.

The EasyBib plagiarism checker is conveniently available 24 hours a day and seven days a week. You can cancel anytime.  Check your paper for free today!.

*See Terms and Conditions

Visit for more information on helpful EasyBib writing and citing tools.

For informational guides and on writing and citing, visit the EasyBib guides homepage .

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With campuswide digital transformation in mind, rollout to thousands of faculty across disciplines took only two months, far quicker than anticipated.

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Keeping student and instructor needs at the core is key to upholding their rigorous standards of integrity while centering students in their learning.

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See solutions for Higher Education

Prepare students for success with tools designed to uphold academic integrity and advance assessment.

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thesis check for plagiarism

Feedback Studio

Give feedback and grade essays and long-form writing assignments with the tool that fosters writing excellence and academic integrity.


Check for existing as well as new forms of plagiarism - from text similarity and synonym swapping to contract cheating, AI writing, and AI paraphrasing.

Grade paper-based, bubble sheet, and code assignments faster than ever while giving more robust feedback and gaining valuable insights.

Address potential gaps in curriculum and assessment to prepare students for their careers and meet accreditation requirements.

This robust, comprehensive plagiarism checker fits seamlessly into existing workflows.


Screen personal statements for potential plagiarism and ensure the highest level of integrity before matriculation.

The Turnitin difference

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Complete Coverage

Your coverage is comprehensive, with the largest content database of scholarly content, student papers, and webpages.

Extensive Support

Have the help you need with 24/7 tech support, curricular resources created by real educators, and customized training and onboarding services.

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Our people-centered approach to artificial intelligence improves academic integrity and makes assessment better for all.

Unparalleled Access

Access Turnitin tools at scale through integrations with over 100 systems in the educational ecosystem.

Further Reading

thesis check for plagiarism

The Plagiarism Spectrum 2.0 identifies twelve types of unoriginal work — both traditional forms of plagiarism and emerging trends. Understanding these forms of plagiarism supports the development of original thinking skills and helps students do their best, original work.

thesis check for plagiarism

An educator guide providing suggestions for how to adapt instruction when faced with student use of AI.

Scribbr Plagiarism Checker

The #1 plagiarism checker for students, ready to detect all plagiarism.

Upload the document you would like to check for plagiarism.

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Price per document

*Prices are per check, not a subscription.

Why students choose Scribbr?

  • Used by 762 students in the last 24 hours.
  • Largest plagiarism database.
  • Detailed and easy plagiarism report.

Your plagiarism report within 10 minutes

How it works.

thesis check for plagiarism

Upload a Microsoft Word, PDF or ODT file of your paper, enter your details and pay.

thesis check for plagiarism

2. Wait a few minutes

Your document is compared to billions of web pages, books, articles and more. This may take a few minutes.

thesis check for plagiarism

3. Receive the report

Similarities are highlighted and matched to the source. You also receive a plagiarism score.

thesis check for plagiarism

4. Fix plagiarism

Add missing citations or rewrite your text. Our award-winning Knowledge Base can help you.

Frequently asked questions

No, the Self-Plagiarism Checker does not store your document in any public database.

In addition, you can delete all your personal information and documents from the Scribbr server as soon as you’ve received your plagiarism report.

The Scribbr Plagiarism Checker is powered by elements of Turnitin’s Similarity Checker , namely the plagiarism detection software and the Internet Archive and Premium Scholarly Publications content databases .

Extensive testing proves that Scribbr’s plagiarism checker is one of the most accurate plagiarism checkers on the market in 2022.

The software detects everything from exact word matches to synonym swapping. It also has access to a full range of source types, including open- and restricted-access journal articles, theses and dissertations, websites, PDFs, and news articles.

At the moment we do not offer a monthly subscription for the Scribbr Plagiarism Checker. This means you won’t be charged on a recurring basis – you only pay for what you use. We believe this provides you with the flexibility to use our service as frequently or infrequently as you need, without being tied to a contract or recurring fee structure.

You can find an overview of the prices per document here:

Please note that we can’t give refunds if you bought the plagiarism check thinking it was a subscription service as communication around this policy is clear throughout the order process.

Your document will be compared to the world’s largest and fastest-growing content database , containing over:

  • 99.3 billion current and historical webpages.
  • 8 million publications from more than 1,700 publishers such as Springer, IEEE, Elsevier, Wiley-Blackwell, and Taylor & Francis.

Note: Scribbr does not have access to Turnitin’s global database with student papers. Only your university can add and compare submissions to this database.

Scribbr’s plagiarism checker offers complete support for 20 languages, including English, Spanish, German, Arabic, and Dutch.

The complete list of supported languages:

If your university uses Turnitin, the result will be very similar to what you see at Scribbr.

The only possible difference is that your university may compare your submission to a private database containing previously submitted student papers. Scribbr does not have access to these private databases (and neither do other plagiarism checkers).

To cater to this, we have the Self-Plagiarism Checker at Scribbr. Just upload any document you used and start the check. You can repeat this as often as you like with all your sources. With your Plagiarism Check order, you get a free pass to use the Self-Plagiarism Checker. Simply upload them to your similarity report and let us do the rest!

Your writing stays private. Your submissions to Scribbr are not published in any public database, so no other plagiarism checker (including those used by universities) will see them.


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Plagiarism Checker

Check-Plagiarism offers a reliable plagiarism checker that is widely used to detect plagiarism. Our plagiarism detector offers deep plagiarism detection for writers as well as students in schools, colleges and universities. To use this tool, enter your content below and click on the button.  



Upload File

Verify, Are You Human?


  • Sentence wise results
  • Matched Sources
  • Save Report Download Report

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Features of Check-Plagiarism

Our tool helps to check plagiarism in your essays, assignments, and blogs. There are many helpful features we have developed in our tool. Here are some of the main ones:

Fast & Accurate

Our plagiarism checker scans your text against billions of web pages & online resources. You can check up to 1,000 words at once. (For premium users, the word limit is increased to 20,000).  Upgrade to pro in just $7

100% Safe & Secure

All files and documents checked with our free plagiarism checker are 100% safe & secure. Your data is completely secure on our servers. No user/search engine/crawler can access your data in any capacity.  

Multiple files support

You can check copied content in up to five documents at once (supported formats: doc, docx, txt, and pdf). Scanning multiple papers will not decrease the speed of the tool. You can also compare documents for plagiarism between them.

Easy-to-Use UI

Our plagiarism checker has a very easy-to-use interface. It provides a simple process to check for content similarities. You can generate a detailed report with percentages.   

Enhanced Reporting with the percentage

Our plagiarism detector scans your text with online resources and provides a complete report with percentages. It helps you to check which sentences of your content are unique and which are plagiarized.

Sentence based checking

Our tool scans every single sentence and compares it with all online resources to detect plagiarism. It uses advanced AI algorithms to detect paraphrased plagiarism.  

  Relevant Tools

  • Paraphrasing Tool
  • Article Rewriter
  • Word Count & Character Count
  • Citation Generator
  • Plagiarism Comparison Search
  • Grammar Checker
  • Text Summarizer

Why Check-Plagiairsm?

Online plagiarism checker users.

Our online plagiarism checker is widely used and loved by thousands of students, teachers, and content writers. We provide super-fast plagiarism detection solutions for colleges, universities, and all other educational institutes.

Students use it to check their papers, assignments and thesis for plagiarism.  It is important for students to check their papers for plagiarism because plagiarism is considered a form of academic dishonesty . This means that if a student submits a paper that includes plagiarized material, they could face serious consequences , such as failing the assignment or the entire course, or even being expelled from school .

Teachers use our plagiarism checker tool to ensure that their students are submitting original work. Our tool can help teachers quickly identify plagiarism in student work, so they can take appropriate action. 

By using our tool teachers can

Ensure academic integrity: By checking for plagiarism, teachers can ensure that their students are submitting original work and not cheating.

Promote original thinking: teachers can encourage their students to think critically and independently to develop their own ideas

Prevent grade inflation: If plagiarized work is undetected it can lead to grade inflation that can damage the integrity of the institution. It is also important to maintain the reputation of the institution. Check-Plagiarism also provides matched sources, so it helps to cite sources in your document. Use our citation generator  to create APA, MLA, and Chicago formats.

Writers use this plagiarism detector:

To ensure originality : Plagiarism checker helps writers to ensure that their work is original and not copied from other sources.

To identify and correct mistakes : Writers can identify and correct any unintentional mistakes, such as failing to properly cite a source.

To improve credibility : Authors can establish their credibility as trustworthy sources of information by making sure their work is original and properly cited.

Webmasters use this tool to make sure their content is plagiarism-free because

Plagiarized content can damage the reputation and credibility of a website.

It's also important because  Google has clear policies on plagiarized content and penalizes websites that contain copied content.

It can lead to legal problems, If the original content is protected by copyright. 

Educational institutes (colleges and universities) can integrate our tool using Plagiarism APIs .

Law firms use this tool to protect the documents of their clients. 

Check more details about how to avoid plagiarism . 

plagiarism checker

How to use this Plagiarism Checker free?

To check plagiarism of your content by using our plagiarism detector online, follow the below instructions:

Type or paste your text into the input box.


Exclude the URL (if any) from the “Show Advanced” option. This URL will be ignored while checking for plagiarism, any text copied from the excluded URL will be marked as unique content.

Click on the Check Plagiarism button. We have added recaptcha security to avoid robots. 

All done? No extra steps are needed. Our free online plagiarism checker will scan the given content against millions of online resources and generates an accurate plagiarism report with percentage. With our Deep-Search technology, our tool can also detect paraphrased plagiarism .  

how to use plagiarism checker

Frequently Asked Questions?

  what is considered plagiarism.

thesis check for plagiarism

According to Oxford: “Plagiarism is presenting someone else’s work or ideas as your own, with or without their consent, by incorporating it into your work without full acknowledgment”.

It involves:

1. Copying and pasting someone else's text

2. Paraphrasing someone else's work without proper attribution

3. Using someone else's ideas without giving them credit

4. Using someone else's images, videos, or other media without permission

5. Submitting someone else's work, such as a paper or project, as your own

  Is it plagiarism if you copy and paste but cite the source?

Presenting someone’s idea as your own is considered plagiarism if not properly cited. While if you copy and paste but cite the source with proper formatting then it's not plagiarism.

  Is the usage of plagiarism-checking tools Illegal?

Educational institutions highly recommend plagiarism-checking tools to prevent copying of others’ work. Even research work is not considered authoritative without a plagiarism report. So using plagiarism-checking tools is legal and necessary.

  What are the consequences of plagiarism?

Plagiarism involves serious consequences as its a crime.

Its Academic consequences range to:

  • Failing the assignment
  • Failing the course
  • Institute Suspension
  • Expulsion from institution

Its Legal consequences cost you:

  • Intellectual Damages
  • Criminal Charges
  • Loss of your employment

Its Personal consequences can affect you with:

  • Loss of credibility
  • Damage of Reputation
  • Damage to professional relationships
  • Slowing down your career, especially in Education

We Cover Multiple Platforms

Our plagiarism-checking process supports one of the most popular platforms, WordPress. You can check for plagiarism/duplication of your content directly from your WordPress admin panel. Just download our plagiarism checker plugin and start using it. Check Plagiarism also support educational institutions through our APIs. Universities, colleges, and other educational institutes & Organisations can integrate our APIs to detect plagiarized content on their own end. Our plagiarism tool works accurately on other platforms as well.   

A WordPress plugin is available to check plagiarism directly from the admin panel.

Configure your plagiarism software with our APIs, to check directly from your server.

How it Works

Content is first parsed into sentences and then every sentence is checked for plagiarism. If any duplication is found against that sentence, it will be marked in red and if that text is unique, it will be shown in green.

Comparing your content

All results are displayed in real-time. You can compare your content with any of the matched URLs with just one click. You can also use this plagiarism tool directly on the plagiarism comparison tool page.  

Happy Customers

Our plagiarism checker is loved by 400,000+ customers worldwide. We have positive feedback from customers of all categories. Look at those reviews below.

Our Customers Feedback

We have 70,000+ happy clients including Masters, Students, Teachers and publishers around the world. A Positive previous record is enough for new users to understand that we have the most accurate plagiarism detector.

Nadia Moeen

This free online plagiarism detector is amazing; it checked my content in seconds with very accurate results. According to me it's the best plagiarism detection software.


I am a student and I use this tool regularly to check plagiarism for my papers. Best plagiarism checker for students.

Moosa Ali

I used their APIs to configure my college website so that students can check plagiarism free for their papers directly from the college website.

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Trinka's online thesis editor offers top-notch quality, reasonable pricing and rapid turnaround time for editing your thesis.

Grammar Corrections on a Thesis document

Key Features of Trinka’s Thesis Grammar Checker

Trinka's advanced thesis grammar checker will remove spelling and grammatical errors from your thesis or dissertation and improve its overall language quality and presentation.

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Polish your writing with Trinka’s language tips on enhanced vocabulary, tone, syntax and much more.


Retain Original Formatting

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Experience the most advanced text similarity detection algorithm, iThenticate, the largest paid publication database covering all scientific fields.

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  • Knowledge Base
  • Best Free Plagiarism Checkers in 2023

10 Best Free Plagiarism Checkers in 2023 | Tested & Reviewed

Published on June 8, 2023 by Koen Driessen .

To find the best free plagiarism checker in 2023, we extensively tested and reviewed all popular tools to answer questions like, “How much plagiarism can they detect?” and “Are they actually free?”

Table of contents

Research methodology, general conclusions: free vs. paid checkers, 1. scribbr review, 2. quetext review, 3. duplichecker review, 4. small seo tools review, 5. pre post seo review, 6. grammarly review, 7. plagiarism detector review, 8. review, 9. search engine reports review, 10. review, frequently asked questions about plagiarism checkers.

The plagiarism tools in this research are tested using 4 test documents , ranging from unedited to heavily edited.

Each test document consisted of plagiarized sections from 140 sources like Wikipedia articles, news articles, open-access journal articles, websites, theses and dissertations, and PDFs.

This setup allowed us to analyze:

  • The reliability of plagiarism checker tools, even when texts are edited to varying degrees
  • The depth and breadth of the tools’ content databases (whether they only covered websites or also journal articles)

Read more about the research methodology

We found that free tools were frequently misleading in their advertising and were lacking in many ways compared to paid ones. Our research led to these conclusions:

best plagiarism checker scribbr

  • Offers a limited free version
  • Finds far more plagiarism than other tools
  • Detects plagiarism even in edited texts
  • Won’t store or sell your documents
  • Money-back happiness guarantee, with live support available
  • Self-Plagiarism Checker feature allows you to check for self-plagiarism
  • You need to go premium to find out your precise similarity score and view the entire report

Scribbr offers a limited free version that’s perfect for checking if your paper contains potential plagiarism. To view the full report, you need to buy the premium version, which costs between $19.95 and $39.95 depending on the word count. There’s no word limit, so you can upload as big a document as you want.

Quality of matches

Scribbr’s checker, developed in partnership with Turnitin, heavily outperformed all free and paid tools in terms of the amount of plagiarism detected: 83% vs. an average of 42% across free tools.

It performed particularly well with source types relevant to students, such as journal articles and dissertations. Importantly, Scribbr was far more successful than other tools at detecting plagiarism in heavily edited texts, showing it has no trouble with paraphrasing plagiarism.

Scribbr could also consistently provide full matches instead of partial ones, matching the whole plagiarized passage to the correct source.

You see your results in a straightforward downloadable report. Different sources are highlighted in different colors, making it more readable.

The issues identified can be fixed with Scribbr’s Citation Generator , generating correctly formatted citations wherever they are needed.

In addition, Scribbr offers a Self-Plagiarism Checker . This unique tool allows users to upload their own unpublished documents in addition to the public database, to detect any possible self-plagiarism.

However, you can’t edit your text directly in the tool, and it’s not possible to re-check your document for free.


Scribbr will not store, sell, or share your uploaded documents. Data is automatically deleted after 30 days, or students can opt to manually delete their document after the check.

Live customer support is offered in multiple languages to assist users. A guide and other resources explaining plagiarism issues are easily accessible.

Scribbr also has a happiness guarantee: if you’re not satisfied with the tool for any reason, you can ask for a new check or a refund.

Check out Scribbr

que text

  • Built-in citation assistant helps to add missing citations
  • Documents not stored in database
  • Support options available (but no live support)
  • Finds partial matches
  • Not clear how the free trial works
  • Monthly subscription of at least $8.25 after free trial
  • Not effective for scholarly sources
  • Doesn’t detect all plagiarism

Quetext offers a free trial of 500 words, after which users must pay for a premium plan.

Additionally, uploading files to Quetext is a Pro feature. If you don’t pay, you’ll have to copy-paste the text from your document instead.

The paid version costs at least $8.25 per month (more expensive plans are available), which allows you to check up to 100,000 words.

Quetext detects more plagiarism (49% on average) than any free tool, but it’s unable to match each source text fully to a single source. Different sentences are attributed to different sources.

While Quetext claims to check against academic sources, we found it didn’t perform well at identifying plagiarism from sources such as journal articles and student dissertations.

Quetext’s plagiarism report is relatively straightforward to understand and provides a useful overview. A precise percentage is shown, with similarities in the text highlighted.

However, different sources are not highlighted in different colors, making the report somewhat difficult to read. Instead, orange highlighting is used for partial matches, red for full matches.

There’s also a built-in citation assistant that can help you fix plagiarism by adding citations. Unfortunately, it’s not very robust. Citations generated this way may not be accurate, and you have to add a lot of information manually.

Quetext states that it doesn’t save your text to a database and that all text submitted remains private and encrypted.

Information about the service is available in the form of FAQs on the website, and it’s also possible to contact the company by submitting a request form.

Check out Quetext


  • Free (1,000 words per scan)
  • Doesn’t save uploaded documents
  • Relatively user-friendly reports
  • Distracting ads for other services
  • Low level of plagiarism detected
  • Performs very poorly with edited text
  • No color coding for different sources

DupliChecker’s service is free, though you can only upload 1,000 words at a time. If you go for one of their premium plans, you can go up to 25,000.

If you do want to upgrade, a large number of different premium plans are offered on the site, which can be somewhat confusing to navigate. The cheapest is $10 a month.

The level of plagiarism detected by DupliChecker was relatively low (44%).

While the tool was able to find some plagiarism, it was unable to find any full matches. Overall, it performed about as well as other checkers like Small SEO Tools.

DupliChecker’s website is unfortunately full of ads for their other services and for similar sites. A distracting animated “Make it unique” button appears in the report, advertising their rewriting tool.

In the online report, all plagiarized text is highlighted in one color, and it is difficult to figure out what source each source block is matched with.

The site claims not to save uploaded documents, and it deletes content after the check is complete to avoid data leakage. No live support is available, but there is a contact form on the website.

Check out DupliChecker


  • Various options for document uploads
  • Page is slow, somewhat confusing, and full of ads
  • Scans individual sentences rather than full texts

Small SEO Tools is free to use, although you can only check 1,000 words at a time without paying.

You can run multiple checks if you need to scan more than that, although the site requires you to complete CAPTCHAs to upload multiple documents.

Small SEO Tools was unable to identify most plagiarism in our test documents, with an average of only 44%. Since it scans individual sentences separately, it was only ever able to produce partial matches.

Plagiarized text is highlighted (though all in one color), and you can click on it to be shown the source it was matched with.

The page is cluttered with a lot of ads that you can easily confuse with the buttons you need to press.

The report itself is relatively clear. While plagiarized text is highlighted in one color, the tool clearly links matched text with the source identified for it.

Small SEO Tools claims not to store your content after checking it. You don’t have to register to use the tool. Users can also contact a support email to request their personal data be erased.

Check out Small SEO Tools


  • 1,000-word upload limit
  • Color-coded highlighting
  • Some full matches
  • Citation assistant
  • Live support option
  • Detects a low proportion of plagiarism
  • Report is hard to read
  • Messy, ad-heavy page design
  • Color coding doesn’t distinguish between different sources

It’s unclear whether Pre Post SEO is actually a free tool. While the website claims there’s a search query limit for visitors, the limit is not clearly specified and did not seem to apply when we tested our documents.

You can only scan up to 1,000 words per search and cannot see a complete list of matched sources (instead, you must check them manually). These limits are removed if you sign up for their premium plan, which costs $10 to $45 a month.

Pre Post SEO did find the occasional full match, but in most cases it was only able to find partial matches, like most free checkers. Overall, it performed about as well as tools like DupliChecker and Small SEO Tools.

The page where the checker is hosted is full of distracting and irrelevant ads, making the user experience frustrating.

A different color was used for verbatim plagiarism and paraphrasing plagiarism, but the tool’s judgment was often wrong. Other than that, the same color was used for different sources, which made the report hard to read.

Pre Post SEO states that it does not store or sell your documents. There is a live support option on the site and a form you can use to request support.

Check out Pre Post SEO


  • Language and citation assistant available
  • Does not sell or share documents with third parties
  • Finds a relatively low percentage of plagiarism
  • Same colors used for different sources

Despite the way it’s advertised, Grammarly’s checker is not free. All you can do is see a screen that tells you there’s plagiarism in your text without giving you any details of where it is, how much of it there is, or what the sources are.

After this you’ll be directed to download the Grammarly app and subscribe to their premium service ($30 per month). There’s a limit of 100,000 characters (about 20,000 words) even after paying.

Grammarly was able to find more full matches than most free tools. However, it performed particularly poorly with academic sources and received a low percentage overall, scoring a total of 40%.

As a premium service, Grammarly has a clearer and more visually appealing style than most free checkers. The original formatting of the document remains mostly intact, but the tool uses the same color for all sources, making the results hard to parse.

The subscription also gets you a language and style tool and a citation assistant.

Grammarly does not store, sell, or share documents with third parties.

The site provides a support page with tips, tutorials, and FAQs, and you can submit a question via a form. Live support is not available.

Check out Grammarly

plag detector

  • Free to use (1,000-word limit)
  • Does not store or sell your document
  • Technical issues with long documents
  • Difficult to match text with sources in the report
  • Different sources highlighted in the same color

Plagiarism Detector is free to use and users do not need to register. However, there is a limit of 1,000 words per document. By paying, you can raise this limit to 25,000 words per document.

Plagiarism Detector’s performed about as well as other 100% free tools (40%).

The tool was mostly only able to find partial matches, attributing individual sentences to one or more sources.

Plagiarism Detector’s reports are somewhat difficult to read. The same colors are used for different sources, and hovering over a plagiarized section doesn’t show you the source. Instead, you need to find it in a separate list.

Plagiarism Detector states that it will not store or sell your documents. No live support is available, but there is a help request form.

Check out Plagiarism Detector

Check Plagiarism

  • Offers a citation generator
  • Difficult to match text with sources in the downloadable report
  • Scans sentence by sentence —rarely gets a full match

It’s unclear whether is actually free. The site describes the free upload limit in a confusing way, allowing you a certain number of “queries” (sentences) per month. However, these limits are not clearly specified and did not seem to apply when we tested our documents. performed slightly worse than most 100% free tools, scoring a total of 39%.

While the tool was able to find some full matches, it mostly found partial matches.

The same color was used for different sources, which made the report hard to read. A different color was used for verbatim plagiarism and paraphrasing plagiarism, but the tool was often wrong.

You can check up to 1,000 words at once for free. 

In the downloadable report, the format of the text is mostly retained. The report provides a long list of sources that are difficult to cross-reference with the text above.

The version of the report shown on the site itself is slightly better, as a box next to the plagiarized text allows you to see the text identified as the source. There is a “rewrite” function, along with a (manual) citation tool. claims that the reports generated on their site are “highly secured and un-accessible.”

There are some FAQs listed on the site, but the answers provided are not very clear. They have live messaging support along with a contact form.

Check out


  • Genuinely free for most purposes (1,000-word upload limit)
  • Lots of distracting ads
  • Unable to find most of the plagiarism
  • Same highlight colors for different sources

Search Engine Reports is free to use, and users do not need to register. However, there is a limit of 1,000 words per scan. By paying, you can raise this limit to 30,000 words per scan.

The methodology this tool uses to find matches appears highly unreliable. It seems to simply search Google for each sentence in your document, counting it as plagiarism if it finds a match.

It identified only a low proportion of the plagiarism (38%) in our test documents. Due to its methodology, it was usually unable to find full matches, and it performed particularly poorly with scholarly sources such as dissertations and journal articles.

The report shown on the site gives a list of individual sentences marked as plagiarized or original. You can click a link next to each source, but all it does is google the sentence in question. The downloadable report highlights plagiarism within the text and shows a list of sources, but it doesn’t clearly link each sentence with a source.

There is also a language statistics function that lets you see words that appear frequently in the text to help limit repetition.

Search Engine Reports claims not to store any uploaded content in their database. There is no live support, but there is a contact form.

Check out Search Engine Reports


  • Uploaded documents not stored/sold
  • Detects a very low amount of plagiarism
  • Misleading about costs—only free for five documents
  • Low word limit of 800
  • Lots of distracting ads and pop-ups

The tool claims it’s free, but it actually only allows you to upload five documents before requiring you to sign up for one of their many premium plans. These documents have an unusually low word limit of 800.

The premium plans offer options to increase (but not remove) this word limit. The cheapest is $15 per month, which only increases the limit to 1,000 words—a limit many other tools offer for free. gave some of the worst results out of all the checkers we tested, with an average of 30%. It was never able to provide a full match for a source text, only partial.

The tool is frustrating to use due to the high number of ads it displays and the low word limit.

The downloadable report sometimes didn’t include the plagiarism percentage, making it impossible to know how much of the text was plagiarized/original.

The report itself is difficult to read. All plagiarized text is highlighted in one color and is not clearly matched with the source identified for it.

The site claims that uploaded content is not stored in a database or shared with others. It also claims that “our advanced AI-powered algorithm ensures that your content must be protected under the copyright laws.” It’s not clear what this means.

While the site claims to have 24-hour support, there is no live support. There is a contact form on the site.

Check out

Yes, Scribbr offers a limited free version of its plagiarism checker in partnership with Turnitin. It uses Turnitin’s industry-leading plagiarism detection technology and has access to most content databases.

Run a free plagiarism check

If you’re a university representative, you can contact the sales department of Turnitin .

Scribbr is an authorized Turnitin partner

Plagiarism can be detected by your professor or readers if the tone, formatting, or style of your text is different in different parts of your paper, or if they’re familiar with the plagiarized source.

Many universities also use plagiarism detection software like Turnitin’s, which compares your text to a large database of other sources, flagging any similarities that come up.

It can be easier than you think to commit plagiarism by accident. Consider using a plagiarism checker prior to submitting your paper to ensure you haven’t missed any citations.

The accuracy depends on the plagiarism checker you use. Per our in-depth research , Scribbr is the most accurate plagiarism checker. Many free plagiarism checkers fail to detect all plagiarism or falsely flag text as plagiarism.

Plagiarism checkers work by using advanced database software to scan for matches between your text and existing texts. Their accuracy is determined by two factors: the algorithm (which recognizes the plagiarism) and the size of the database (with which your document is compared).

Your document will be compared to the world’s largest and fastest-growing content database , containing over:

  • 99.3 billion current and historical webpages.
  • 8 million publications from more than 1,700 publishers such as Springer, IEEE, Elsevier, Wiley-Blackwell, and Taylor & Francis.

Note: Scribbr does not have access to Turnitin’s global database with student papers. Only your university can add and compare submissions to this database.

Cite this Scribbr article

If you want to cite this source, you can copy and paste the citation or click the “Cite this Scribbr article” button to automatically add the citation to our free Citation Generator.

Driessen, K. (2023, June 08). 10 Best Free Plagiarism Checkers in 2023 | Tested & Reviewed. Scribbr. Retrieved November 17, 2023, from

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Other students also liked, types of plagiarism and how to recognize them, how to avoid plagiarism | tips on citing sources, best plagiarism checkers of 2023 compared, what is your plagiarism score.

thesis check for plagiarism

Plagiarism Detector Online

Protect your thesis from plagiarism

✓ Result within 10 min.

✓ Compared to billions of online sources

✓ Your work will not be saved to a database

price: from $19,90


Go to plagiarism detector


  • 1 Advantages
  • 3 Plagiarism package S
  • 4 Plagiarism package M
  • 5 Plagiarism package L
  • 6 Information on the Plagiarism Detector
  • 7 Plagiarism Detector Process


Detector takes only 10 minutes

You don’t have to schedule a lot of time for the plagiarism detector. You’ll receive the results of your check just 10 min. after uploading your paper.


No saving to a database

The plagiarism detector will automatically and permanently delete your work from the server after the check, so you don’t have to worry about data privacy.


Compared with billions of sources

When using the BachelorPrint plagiarism detector, your thesis will be compared to billions of online sources, checking your paper for duplicate content.

Plagiarism package S

What's included.

Up to 8.000 words

Only 10 minutes processing time

No saving in database

All languages

Compared with billions of freely accessible sources

10 % print voucher

Plagiarism package M

Up to 60.000 words

Plagiarism package L

More than 60.000 words

Information on the Plagiarism Detector

It takes weeks or months to write a paper. You spend lots of energy to submit the perfect paper. Don’t leave the possibility that you might have forgotten to correctly cite a source to chance – the last thing you want is to have committed plagiarism.

Play it safe with a plagiarism detector. You can check your thesis in just 10 minutes. All it takes is a few clicks. Just upload your paper and the plagiarism detector will compare your paper to billions of online sources. When the detector is finished, you will receive a plagiarism report, showing the results of the check and making it easy to improve your thesis!


Max. file size


Maximum number of pages

350 pages, equivalent to approx. 750,000 characters

plagiarism-detector-comparison (1)

Detector sources

public sources that are available on the web

plagiarism-detector-in-10-min (1)

Amount of time

approx. 10 mins

File formats supported by the plagiarism checker


Tip for the plagiarism detector The plagiarism detector is very thorough and scans every passage in your uploaded paper, including tables and indexes. If you don’t want the plagiarism detector to scan these parts of your paper, create a document that does not include these parts.

FAQs: Frequently asked questions about the plagiarism detector If you still have any questions about the plagiarism detector, you can find answers to the most frequently asked questions here: See FAQs

Tip: Print your thesis with BachelorPrint and save 10% You can save yourself an extra 10% when you print your thesis with BachelorPrint by using the plagiarism detector. You will receive a 10% coupon after the plagiarism detector is finished which you can redeem in our Online-Shop !

Plagiarism Detector Process


Easy upload of your paper.

The right plagiarism package will be selected automatically..

In the first step, upload the file for the paper, thesis, assignment, or dissertation to be checked, to our server. Our system supports all common formats: Word, PDF and Open Office. You can also upload several documents at the same time. After the upload, the word count of your thesis will automatically be detected and the plagiarism detector selects the right plagiarism package for you. Now the plagiarism finder starts its work.

Detect plagiarism by checking billions of sources

The text will now be extracted from your file and divided into individual sections by our plagiarism detector. These so-called phrases will then be checked for plagiarism. The BachelorPrint plagiarism detector will compare your work with content from the World Wide Web using special algorithms. This involves comparing your work against billions of sources, checking them for content that is duplicated in your thesis. By the way, the plagiarism detector is available in more than 10 languages and you can use the detector for all of these languages.


The plagiarism report. Easy to understand. Identified plagiarism is quoted and assigned a color using a traffic light scheme.

The results of the scan are shown in a plagiarism report in PDF format. Here you can see exactly where plagiarisms have been identified in your text. In addition, links to the original source are provided. The report also shows you the percentage of plagiarism in your paper, assignment or thesis. This value should be below 5%. In summary, you will see the overall result as a percentage of matches.

Sample plagiarism report after the plagiarism detector online

Plagiarism detector in just 10 minutes. Play it safe!

Play it safe. Leave nothing to chance!

Start check now

How long does a plagiarism detection take?

The plagiarism detector  working on a bachelor’s or master’s thesis (60-80 pages), normally takes between 10 and 20 minutes. It depends on the number of words submitted. In the case of longer pieces of work (200-300 pages), the plagiarism detector can take up to an hour.

Does the plagiarism detector work in other languages?

Yes! The plagiarism detector works in all languages. Regardless of the language or if you’re writing a masters’s thesis, or an essay, the plagiarism detector will work for you.

Will the document I upload be saved to a database?

No! For data protection reasons, we don’t save any of our customers’ uploaded documents. We delete them from our server within 24 hours! Upload your document and you’ll have your plagiarism report within the day! Start your plagiarism check now.

Do I have to register for the plagiarism detector first?

No! You can just upload your document, choose your payment method and then use the plagiarism detector without a user account or registering. It’s quick and easy, plus, none of your data will be saved once the check is completed. Start your plagiarism check right away!

Which sources will be used by the plagiarism detector?

All publicly accessible online sources will be used in the plagiarism detection. This includes publicly accessible websites, books, reports, journals etc. Databases where payment is required are excluded. If you’re having trouble organizing and referencing your sources properly, head over to our blog. We have many articles about proper citation and referencing .

Will books also be referred to in the plagiarism detection?

If the book is online in a publicly accessible database, then the plagiarism detection will also find this source. However, if you have cited the hard copy of a book and it also exists online, then this may be picked up by the plagiarism detector. If you have cited the source, you have no need to worry- it’s simply an extra precaution. Check out our blog post for more information about citing books .

What’s the difference between the BachelorPrint plagiarism detector and Turnitin?

The BachelorPrint plagiarism detector doesn’t save any uploaded work for data protection reasons, unlike Turnitin. Accordingly, we don’t rely on the same data base as Turnitin.

However, our plagiarism detector searches billions of publicly available sources on the World Wide Web.

Information : If the work is scanned for plagiarism in advance with Turnitin, and the university also uses Turnitin, there is a considerable potential risk for the writer. As Turnitin saves the uploaded work, this will then be in their database. If the university scans the same work on it, it will then be classified as complete plagiarism . We have already heard this a few times. The student’s work was therefore failed in the first instance and they had to prove that they had written the document saved by Turnitin.

I haven't received an email with the plagiarism report. What should I do?

It’s possible that the email has gone into your spam folder. In really rare cases, our email with the plagiarism report from the plagiarism detector might have been blocked by your email provider and hasn’t been received. Please contact us at [email protected] . We will email you the plagiarism report again.

Too few pages are shown in the plagiarism report.

For an overview, only text passages that might contain plagiarism are shown in the plagiarism report. The other pages where no plagiarism is suspected will not be shown. So less pages in your plagiarism report is really a good sign- it means that you’ve cited your sources correctly. Take a look at our blog article for more information about referencing and citation styles .

Why is a section marked as suspected plagiarism even though I have cited the source?

It’s possible that a section of text is marked as suspected plagiarism even though it has already been correctly cited, for example from a book. This happens if the software finds a further online source. In this case, the suspected plagiarism can be ignored and serves as extra peace of mind.

Any further questions on the plagiarism checker? Contact us: [email protected] 724 281 3937 Free 24h Customer Service

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14 Best Free Plagiarism Checkers Online – 2023

Best free online plagiarism checkers 2023

Dr. Somasundaram R

Best Free Plagiarism Checker

Table of contents

Why plagiarism checkers, 5 important questions to ensure before giving your content to a free plagiarism checker, best free plagiarism checkers online overall list, 1., 2., 3. plagiarism checkerx, 4., 5., 6. – free plagiarism checker, 7., 8., 9., 10., 11. viper plagiarism checker, 12. copyleaks plagiarism checker, 13., 14.

  • How to Choose the Best Plagiarism Checkers

Recent Best Plagiarism Checkers List 2023

Plagiarism is a serious offense that can hurt your academic or professional career. To avoid accusations of plagiarism, it’s important to use a plagiarism checkers to ensure that your work is original.

There are many different plagiarism checkers available, so it can be difficult to choose the right one. In this article, we’ll compare the best plagiarism checkers of 2023 and help you choose the one that’s right for you.

Plagiarism is not happening with intention. most of the time, it appears by mistake in your thesis. Even a single inaccurate citation also considered being plagiarism. To identify plagiarism, there are many free plagiarism checkers available online.

Identifying unoriginal content, reducing similarity, and improving the quality of your thesis with some effective free plagiarism checker tools are very important before submitting your thesis.

In this article, ilovephd provides the 10 free plagiarism checker tools available online for your thesis correction.

Risk Factors of Free Plagiarism Software

When it comes to free plagiarism software, the first thing that comes to your mind is content theft .

There are hundreds of free plagiarism-checking software available online but still, it would be difficult to recommend a free tool to check plagiarism. Let’s see some of the major reasons why researchers refuse to use free plagiarism software.

  • How are plagiarism-checking tools earning?
  • Does that plagiarism checker store and sell your content?
  • How effective that plagiarism checker is?
  • Does the end report accurate?

By finding the answer to these questions, you can go further to take a plagiarism report in the free tools. With these important questions, we analyzed more than 50 free tools and shortlisted 10.

Most of the tools given in the list are earned by Google Adsense also ensures the data protection of the unpublished scientific thesis content.

Here are some of the best free plagiarism checkers available online:

  • Grammarly: Grammarly offers a free plagiarism checker that scans your text for duplicate content and provides a similarity percentage. It’s user-friendly and integrates well with your writing process .
  • Copyscape: Copyscape is a dedicated plagiarism checker that can be used for free to find duplicate content online. It’s especially useful for verifying if your content has been copied by others.
  • DupliChecker: DupliChecker provides a free and user-friendly plagiarism checker that scans your content for similarities and generates a plagiarism report.
  • SmallSEOTools: SmallSEOTools offers a comprehensive suite of SEO and content-related tools, including a free plagiarism checker. It’s simple to use and provides detailed reports.
  • Plagscan: Plagscan offers a limited number of free checks per month. It’s known for its accuracy and is commonly used in academic and research settings.
  • Quetext: Quetext offers a free plagiarism checker with a simple interface and the ability to upload documents for scanning. It provides a similarity percentage and highlights potential issues.
  • PaperRater: In addition to grammar and spell checking, PaperRater offers a free plagiarism checker that provides an originality score and identifies potential sources of plagiarism.
  • Prepostseo: Prepostseo offers a free plagiarism checker that allows you to upload documents or check text directly on their website. It provides a similarity percentage and highlights duplicate content.
  • Plagiarisma: Plagiarisma is an online plagiarism checker that supports multiple languages and checks content against a wide range of sources on the web.
  • PlagScan (Free Trial): While PlagScan offers a paid service, it also provides a free trial version that allows you to check a limited number of documents for plagiarism

10 Best Plagiarism Checkers Free for Thesis, Research Paper, and Assignment

Best Plagiarism Checkers for Free

Duplichecker is a free online plagiarism-checking software developed for proofreading, editing online content, and plagiarism chinking for students and academic writers. this site gives the best accuracy of output with a statistical report by using their tools.

Best Plagiarism Checkers for Free

Plagiarism software is one of the famous free plagiarism checkers online . This tool was designed in a way to help academic writers to analysis their text documents. This free plagiarism checker performance accurate and gives all possible details about the document.

Best Plagiarism Checkers for Free

This software is designed to detect duplicate content against your given documents/text/thesis which helps students, teachers, universities, colleges, and academic writers to check the originality of their content over plagiarized material.

Plagiarism CheckerX software’s trial version is FREE to download but has some limitations. But still, it performs better in the free version for small chunks of the document.

Best Plagiarism Checkers for Free

PlagScan is another leading plagiarism checker tool with strong privacy and legal compliance. PlagScan ensures the uploaded documents will never be shared with unauthorized third parties.

Best Plagiarism Checkers for Free

Plagramme plagiarism checking software works deeply to check the citations, online contents, and academic documents. plagramme reports if traces of repeated paraphrasing and copied content are found in your thesis.

Best Plagiarism Checkers for Free

Small SEO Tools offers a Best Free Plagiarism detector which gives deep insights of the document with respective copied URLs. This free plagiarism tool helps millions of students and writers to check the plagiarism every day.

Best Plagiarism Checkers for Free

Plagiarisma is a free plagiarism checker tool which also available for Android devices. This easy and free plagiarism tool helps you to check plagiarism in an effective way.

quetext ilovephd

  Quetext is a leading plagiarism-detection software, providing services to over 2 million teachers, students, and professionals worldwide. Quetext is to empower writers with a sense of security in their work.

easybib ilovephd

EasyBib Plus plagiarism tool provides all-in-one support to cover all your bases. The premium version of the software covers more futures.

With a single scan, you’ll receive personalized feedback to help identify potentially missing citations and help improve your sentence structure, punctuation, grammar, and more.

Best Plagiarism Checkers for Free

Noplag provides a detailed plagiarism report that you can send and share. So don’t let plagiarism issues slow you down anymore, deal with them in the fastest and most effective. it offers various services such as plagiarism checkers for universities, colleges, schools, students, teachers, and academics.

Viper Plagiarism Checker is an online plagiarism detection software that scans documents for potential plagiarism. It is used by students, teachers, and professionals to check for plagiarism in written work. It compares the content of a document to a vast database of online sources, including websites, journals , and other documents, to detect any potential plagiarism.

Copyleaks Plagiarism Checker is an online tool that helps you detect plagiarism in your content. It scans your content for plagiarism against billions of online sources and provides you with an instant report. It also helps you identify the sources of plagiarism and provides you with a detailed report on the plagiarism check. Copyleaks Plagiarism Checker can be used to check academic papers, articles, blog posts, and other types of content.

2 Best Paid Plagiarism Checkers for Thesis, Research paper, and Assignment (Recommended Versions)

TURNITIN ilovephd provides a premium version of services to students and institutions with 10 types of plagiarism based on findings worldwide.

Each type has been given an easy-to-remember moniker to help students and instructors better identify and discuss the ramifications of plagiarism in student writing.


iThenticate is the leading provider of professional plagiarism detection and prevention technology used worldwide by scholarly publishers and research institutions to ensure the originality of written work before publication. iThenticate helps editors and authors prevent misconduct by comparing manuscripts against its database of over 60 billion web pages and 155 million content items, including 49 million works from 800 scholarly publisher participants.

iThenticate helps editors and authors prevent misconduct by comparing manuscripts against its database of over 60 billion web pages and 155 million content items, including 49 million works from 800 scholarly publisher participants.

How to Choose the Best Plagiarism Checker s

When choosing a plagiarism checker, there are a few things you’ll want to consider:

  • Price:  Plagiarism checkers can range in price from free to hundreds of dollars per year. Choose a plagiarism checker that fits your budget.
  • Features:  Some plagiarism checkers offer more features than others. Make sure the plagiarism checker you choose has the features you need, such as a plagiarism report and a grammar checker.
  • Ease of use:  Plagiarism checkers should be easy to use. Choose a plagiarism checker that’s easy to understand and navigate.
  • Reliability:  Plagiarism checkers should be reliable. Choose a plagiarism checker that has a good reputation and that’s been used by others.

Plagiarism is a serious offense that can have a negative impact on your academic or professional career. To avoid accusations of plagiarism, it’s important to use a plagiarism checker to ensure that your work is original.

Ensuring the originality of your content is essential, and the best plagiarism checkers mentioned above can assist you in avoiding the severe consequences associated with plagiarism.

By considering factors such as content database size, user interface, additional features, and pricing plans, you can select the most suitable plagiarism checker to meet your specific needs. Invest in these reliable tools to enhance your writing integrity and achieve peace of mind.

There are many different plagiarism checkers available, so it’s important to choose the right one for your needs. In this article, we’ve compared the best plagiarism checkers of 2023 and helped you choose the one that’s right for you.

We hope this article helps you to choose the right plagiarism tool to check your thesis, research manuscript, and assignments.

You Might Also Love to Read 10 Types of Plagiarism – Every Academic Writer Should Know
  • Turnitin: As a leading plagiarism detection tool, Turnitin excels in its comprehensive content database and its ability to provide links to original sources. It offers a user-friendly interface and is suitable for academic purposes.
  • Grammarly: While renowned for its grammar-checking capabilities, Grammarly also offers a powerful plagiarism checker. It is versatile, capable of detecting plagiarism in various types of content, and provides helpful suggestions to improve language usage.
  • Copyscape: Copyscape specializes in detecting duplicate content on the internet. With its robust search capabilities, it is an excellent tool for bloggers, website owners, and content creators.
  • Plagscan: Plagscan stands out with its advanced plagiarism detection algorithms and integration options. It caters to both academic and professional users, offering accurate and detailed reports.
  • DupliChecker: DupliChecker is a user-friendly plagiarism checker that allows you to scan text up to 1,000 words for free. Its simplicity and quick analysis make it suitable for casual users.
  • Quetext: Quetext provides a reliable plagiarism detection system with an intuitive interface. Its extensive database and contextual analysis help identify similarities in content effectively.
  • Small SEO Tools Plagiarism Checker: Small SEO Tools offers a free plagiarism checker that scans text for duplicate content. It provides a basic but useful service for quick plagiarism checks.
  • Unicheck: Unicheck focuses on academic plagiarism detection, offering integration with various learning management systems. Its comprehensive reports and intuitive interface make it an excellent choice for educational institutions.
  • Plagramme: Plagramme offers a user-friendly interface and accurate plagiarism detection. It provides detailed reports and is suitable for both academic and professional users.
  • Scribbr Plagiarism Checker: Scribbr’s plagiarism checker is specifically designed for students, providing comprehensive reports and guidance to improve academic writing . It integrates seamlessly with other writing tools.
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Dr. Somasundaram R

10 Tips for Viva Success: A Guide to Navigating Your Thesis Defense

Web of science my research assistant (myra), postdoctoral researcher opportunity in cutting-edge investigations.

[…] 10 Free Plagiarism Checker Tool for Thesis […]

[…] all your Journals, Magazines, Book Chapters, Thesis, and other materials in an organized […]

The info talked about within the write-up are a number of the best offered.

This list is very useful and can across some of the new tools with the help of this list. Thank !

Nice!! This article offers tips on how to write a research paper without plagiarising, which is crucial.

Great!! This is an effective tool for checking for plagiarism. The collection of resources is excellent for essay writers.

Hi team! How do I get a plagiarism check/type that that check an unlimited words in a manuscript for free of charge?

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Thesis Checker Online

thesis check for plagiarism

Why You Should Mind Grammar, Spelling, Punctuation of Your Thesis

There are several reasons why you should mind your grammar, punctuation and spelling when writing your thesis. Here are some of the reasons:

thesis check for plagiarism

  • ✓ Proper grammar and punctuation enhance comprehension. The professor will understand your problem statement and solutions with ease.
  • ✓ Punctuation and good grammar ensure clarity of ideas. A few missed punctuations may lead to the entire paragraph being misunderstood and misinterpreted.
  • ✓ Proper grammar shows that you understand what you are saying and not putting together pieces of information to fill the required length.
  • ✓ It helps enhance the conciseness of your content as you write each section in a few words.

What Are the Consequences of Submitting a Paper Without a Thesis Check?

If you submit work that is not well checked, several consequences are likely to follow you. Check some of them below:

consequences of submitting a paper without thesis proofreading

  • ✓ You are likely to get a very low score for your thesis. This might have a huge impact on completing your course.
  • ✓ You are likely to submit plagiarised work, which may lead to expulsion from the college and other far-reaching consequences to your career.
  • ✓ Your thesis might not answer the question posed in the problem statement, which would render the entire paper useless.

You need to proofread your work thoroughly before submitting it. Use a thesis checker to make the entire process fast and effective.

What Are the Options for Revising Your Essay?

If you are wondering, “How will I revise my thesis?” There are two main options available to check your work: manual proofreading and the use of a thesis editor . Each of the methods has its pros and cons. This section provides a quick look at the benefits and cons of each to help in your selection.

Manual Proofreading

Manual thesis editing involves going through your work to fix any errors. You need to have enough time and have a good grasp of English so that you do not miss any error that needs fixing.

  • ✓ You can fix errors depending on the context of your content, leading to better comprehension
  • ✓ If you are good at English, the method is easy as you just read through your work
  • ✓ You do not spend cash on any premium thesis analyzer in the market.
  • ✓ Manual proofreading is time-consuming
  • ✓ You are likely to miss some critical mistakes if you proofread in a hurry or do not have a good grasp of English

Using a Thesis Grammar and Punctuation Checker

You may use a thesis checker tool to find and fix grammar and spelling errors in your work. You can go for a free thesis checker tool or go for the premium product.

  • ✓ A thesis grammar and punctuation checker does in-depth content analysis to unravel and fix issues
  • ✓ It speeds up the process of editing your work with higher effectiveness
  • ✓ It comes with various features bundled into one, which offers comprehensive thesis fixing
  • ✓ The thesis grammar checker free tool is an excellent companion for those without a good grasp of English
  • ✓ Some suggestions may not fit your style and context
  • ✓ You will need to cross-check your work after using the online thesis rater

What Difficulties Can You Face When Searching for a Thesis Helper?

There are over five thesis helper free tools on the internet. However, these thesis graders are not created equal. You will find a wide variance in the number of available features and ease of use. This may make it quite difficult for users to pick the best tool. Here are some of the difficulties that they may face:

thesis check for plagiarism

  • Determining the most important features to proofread the thesis effectively. Some tools may not show all the features at once.
  • Determining the free dissertation checker with the best security features. Other tools may capture your work.
  • Examining several tools to find out which of them is easy to use. This may require you to try each tool with a portion of your work.
  • Having to switch tools when one does not work as expected. This can be tedious and time-consuming.

Choosing the best thesis checker is vital to the effectiveness of your paper revision. While the selection process may take some time, it is worth the effort. Read reviews and cross-check available features in the best ones that you pick so that you end up with one that meets your needs.

Tips and Tricks on Selecting Thesis Checker Online

You should keep in mind various things when looking for a tool whose results can be trusted. Here are the most salient considerations:

how to choose thesis checker

  • Pick a tool with various features. Where possible, pick a free dissertation checker that has a grammar, punctuation, spelling and plagiarism checker in one. It saves you the time you may have spent putting your work in different checkers to find different types of errors.
  • Check the security of the thesis editor. It is essential that it does not capture your work as this may expose it to third-parties. Where that feature is available, the tool should prompt you to create your account so that you are in control of what is saved in the tool and what is discarded.
  • Pick a tool that is easy to use. The tool should have a copy and paste editor or have an import feature to help you paste the work and export it with ease when you are done. Besides, it should have an easy to use design and should be accessible online without having to download it. You can go for a downloadable application, but there should be an online option.
  • Read reviews from users on the internet. They will tell what is wrong with any tool that they are using for dissertation proofreading online. While none of the tools does have any cons, pick a tool with more positives than cons.

Our Online Thesis Checker Helps Deal with these Issues

Once you learn how to check grammar and spelling in a dissertation using a software tool, consider picking our online thesis checker. It has several inbuilt features that make your thesis proofreading a lot easier. We have created a tool that is easy to use thanks to its interactive design and a great structure that allows for easy navigation. The solid free thesis check tool checks a number of issues in your papers and recommended fixes in real-time. This dissertation grammar checker is available online and does not require you to download it to rate your thesis.

In addition, it solves the questions of students who wonder, “What tool will rate my college thesis free?” This is because we do not require you to sign up and pay for a trial before using our tool. Read on to find the features that you can use to polish and perfect your paper.

What are the Features of Our Thesis Grader?

These features will help in your dissertation proofreading online.

Grammar and Spelling Checker

We have a comprehensive grammar and spelling tool to check grammar of thesis online and fix issues to do with spelling, grammar, poor word choice, and syntax errors. The intelligent thesis analyzer makes suggestions depending on the context of your work and style. It underlines the issues and suggests solutions for you to consider with your work. Different issues come with different underlines so that you know what error you are looking at.

Plagiarism Checker

Our plagiarism checker highlights areas of your work that might have been copied from other sources. This helps you cite such sources or change the wording for the part of the content. Our plagiarism checker reliable and does not miss any source online.

Headline and Spacing Checker

Our tool is able to check proper nouns, wrong capitalizations and extra spacing between words and sentences. It also works as a proper sentence subject finder . This helps to ensure that your writing is easy to understand and follow the rules of writing. You can use the tool to check your headlines and topics and improve them.

Punctuation Checker

It is easy to forget a comma, period or parenthesis at any point in your writing. Our tool is accurate at detecting any missing and wrongly-used punctuations in your writing. It suggests the best choices based on the grammar suggestions that it makes.

How to Polish Your Thesis with Our Free Thesis Checker

As said earlier, we have a comprehensive tool to review dissertations online. Therefore, if you are a student that is asking, “Help me fix my thesis”, this is the tool to pick. Here are a few steps to use the tool:

how to use free dissertation checker

  • Head to our website using your browser
  • Once the page is loaded, click the import feature to export your work to the tool. Alternatively, you can just copy and paste the work on the site.
  • Once done, start the detection procedure. The tool will find and make suggestions of the fixes to the errors that it finds
  • You can now go through the work and make changes on the editor as per the suggestions made by the software
  • Once complete, import the work or just copy it again and post it on your word processor.

You can read our guide on how to analyze a thesis so that it stands out among your peers. This tool makes your editing work a lot easier and fast.

Try our online dissertation checker to edit and perfect your writing!

thesis check for plagiarism

Privacy Overview

thesis check for plagiarism


These AI-powered writing tools have awesome thesis and topic generators, plagiarism checker and citation builder, and assistance features to help reduce mistakes and transform okay essays into stellar ones.

thesis check for plagiarism

Free Tools for Writing

Do you want to make all your papers 100% original and avoid plagiarism? Use the tool and you will get this impressive advantage within seconds.

Cite all the sources in a proper format within minutes and move your attention to actual writing and other elements of your paper. The tool is ready right now for you.

Create your own thesis that will give you a complete idea of what and how to write within seconds. Professional writers have been using the tool as well.

Now you can generate conclusions precisely as you like and as quickly as you need. Use the tool here and your papers will instantly become better.

Create the title for your paper that is just perfect. Want to know how? Use the tool from here and you will get your answer.

Do you have a need to generate the title of your essay right now? We present you a simple tool that works like magic every single time and helps you more than you can imagine.

If you want to make a tool better or more appealing, make sure to use this tool here. It will help you get more original, unique, and better-looking paper every single time.

Have an already written essay but want to improve it? Our Essay rewriter tool allows you to rewrite any essay or paper to make it more professional and smooth.

Sort all of your lists in alphabetical order as soon as possible and complete any writing task in less time and with a better outcome with Alphabetizer tool.

Free Essay Writing Tools For College Students

When it comes to writing, not all students have a lot of time and can complete this task properly. In other words, students these days don't have the time to invest in a paper to make it perfect, which will impress the professor. Luckily, you can use the best writing tools for students available at PapersOwl, which will make this a problem of the past. Yes, these are all free essay writing tools that work well and can help you get the desired outcome within minutes.

Using all of them is simple, and each writing tool is optimized for modern types of writing, the ones you will need to produce while at college. Use all of these college essay writing tools if you want to get excellent results every single time and if you want to get the grade you will need.

1. Plagiarism Checker

The first of many free online writing tools for students is a plagiarism checker. You only need to know here that using the tool is mandatory. It will make sure your paper is 100% original. If it is not, you will end up with plagiarized content. This means that you cheated, or you copied other writers' sentences. Most colleges these days have strict and annoying policies when plagiarism is detected. In other words, you will get the worst grade, and you will have severe issues in the future. As such, this is one of the best free online writing tools and the one that all students have to use.

Using the tool is as simple as it gets. You will need to paste the file into the field. You can use Google Docs, upload a Microsoft Word file or use Dropbox. It is up to you. Once done, you will need to click search and wait a couple of minutes. On your end, you just wait. But, the tool will compare your content against billions of others. If there are no matches, your content will be 100% original. If there are matches, you can correct them and still end up with 100% original paper. This works with all types of technical writing, all papers, and all essays in the same way. In a nutshell, you can use the tool for any type of writing you have to complete for college, blog, or any other type of publishing. 

2. Alphabetizer

The best writing is something you need to produce at any given moment. If you are successful, you will get the grade you need, and you will end up with the result you like. One of the tools that will help you with technical writing or any other kind of that matter is Alphabetizer. This is another free and easy-to-use tool that works well and has been a powerful asset to all writers. All it does is sort the lists in alphabetical order. You can choose which format or which type you like and choose other specifics like removal options, how the results will be formatted, etc. Paste the text, confirm your settings, and you’re done. This is one of the content writing tools that will require a few seconds or even a minute to use.

Once done, you will get the list you need and the one you will like. Just paste it back to the original file, and you are done. Keep in mind that this has been one of the online writing tools for college students that is essential. If you have content with countless lists, it can save you hours and make sure there are no mistakes. These mistakes will occur now and then, and there is no way around them. Using the tool makes this impossible and generates 100% accurate content that will get you the grade you need.

3. Title page maker

We can add that this tool is the first one you will use and the one that can set the ground for the whole paper. As you can see, the tool is designed to create the title page. You can use the tool for any writing style you like. Currently, supported ones are APA, Chicago, MLA, Turabian, APSA, and IEEE. These are the most commonly used styles. Hence, we don’t believe you will need more. Then, enter the title you like, the running head, and your details. Click generate, and the tool will create the title page you will like and the one your professor will appreciate. This has been one of my favorite writing tools due to its appeal and the fact it is effective and works great every single time.

Once again, we can see that without the tool, you will encounter certain issues, and you can make a mistake. With the tool, you can get perfection every single time and end up with the best writing possible. Be free to experiment with the tool and get the title you will like and the one that matches your topic completely.

4. Citation Generators

Here we have one of the online writing tools, which is more than just important. It will help you transfer all your sources into proper citations. You can choose the style, such as APA 6, APA 7, Chicago, or any other, and provide the needed specifics. Once done, you will get all the sources properly cited according to your selected format. There is no need to add that this works well every time you use the tool and is 100% effective.

At the same time, this writing tool can help you minimize the risk of mistakes. See, if you don’t source your citations properly, you will end up with plagiarized content. As we have mentioned, this is a huge problem and one that you need to avoid at all costs. That's why we believe it is one of the best writing tools and the one all students have to use, period. It is also one of the writing tools for writers that will definitely help beginners who are not familiar with citations and the sourcing of content elements. Once you know how all of that works, it is simple. But this is complicated and can be a huge problem if you don't know how it works.

5. Thesis Generator

Here is one of the free online writing tools that is like no other. It is essential for beginners and those who need help with their thesis. You will need to provide the topic, the main idea behind the topic, and 2 pieces of evidence to justify the claim. Yes, you can also include a counterargument if you like it.

The tool will then generate the thesis, and you will be able to start writing as soon as possible. This makes the writing process much easier and more appealing than you may believe. At the same time, the tool is effective, free to use, and comes with all the essentials you will actually need. We can add that the tool is perfect writing software and the one you should use before you even start writing.

6. Conclusion Generator

This can be categorized as writing software, and it is one of the tools we really like. You will only have to include your title and the text. Click generate, and you are done. You will be presented with the text that you can use immediately after. The text will be perfectly written and the one you will enjoy using. If you are looking for the best writing, you can use the tool daily. It works with all types of essays, papers, etc. The best part is in the overall quality. The tool is based on AI and can generate just the right conclusions. This means that they will be strong, detailed, and to the point. Of all the writing tips, this one has to be the most essential.

7. Essay Title Generator

The tool is precise, as the name suggests. You will have to enter the keywords and choose the category you like. Then you will inform the writers on which title you would like to use. They can create content that will be just perfect every single time. But you can also use the tool to get a better idea about the title you will want to use for your essay. Most writers have a hard time with the title. It is the first element of an essay and something that can make a massive difference, Once you have the title, you will know what to write about instantly, and you will get countless ideas. Without the title, you cannot have the ideas needed.

8. Paraphrasing Tool

From time to time, you will see clichés in your writing, and you will see content that is plagiarized or doesn't look great. The tool helps you eliminate that. You will have to paste the text into the field and scan it. The tool will then highlight all the words that are not ideal. Then you will be able to click on each word and replace it with a proper synonym. The tool is more than just effective and has been one of those we all like, and millions of students have been using it for a long period of time.

Once you have replaced all the words that have been a problem, you can enjoy the text that is more original, better, and more appealing. All of this means that you will have content that will impress your professor on precisely what you need and want to do. In other words, you get content that is just right.

9. Essay Rewriter

If you want and need a simple tool to make your whole paper look new, this is the one. All you have to do is to paste the text in the designated field and click paraphrase. The tool will do all the work, and you will get a new essay that looks great. Our software uses artificial intelligence and advanced algorithms to make this possible and a real deal. In other words, you won’t see any mistakes, errors, or anything like that. The best part here is the fact you only need a couple of seconds for that, and you are done. Be free to use the tool as many times as you like. It is obviously designed for students who need this form of help and works perfectly every single time.

Choose PapersOwl to write your essay

If you are not interested in sentence structure, writing a complete paper, and using all of the tools from above to make it perfect, you can use another option. You can hire a professional writer from PapersOwl to write content for you. It will be delivered in Microsoft Word or Google Docs, and you can submit it to your professor on the same day.

Each paper will be written from scratch, just for you, so it will be 100% original and to the point. Our writers have been doing this for years, so every one of them is a complete professional who will ensure the paper is as excellent as possible. They don't even need to use editing tools because we have editors who will proofread the content and make any adjustments if needed. This means that you will get the perfect paper every single time and the one that will get you the grade you like.

thesis check for plagiarism

Copyleaks Plagiarism Checker for Students

We believe that the best plagiarism checker for students is the one that helps them learn.

The Copyleaks AI plagiarism checking software for students generates a comprehensive similarity report for every assignment submitted, allowing you the opportunity to learn and develop essential skills.

AI Content Detection

AI chatbot-generated content is everywhere, including where you might be conducting research for school. Keep your grades safe with the AI Content Detector , and verify what a human or an AI bot wrote before you submit your assignments.

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Accidental plagiarism.

Sometimes you forget to include a set of quotations or an essential reference; it’s happened to everyone. That’s why we here at Copyleaks aim to help you make accidental plagiarism a thing of the past. See a full report of similar sources to your assignment to double-check any accidental plagiarism.

Ace Your Next Assignment With The Copyleaks Plagiarism Checker for Students

Ai & machine learning assignment copy checker.

Hand in your next assignment completely stress-free! Our AI technology looks for potential issues with identical, similar, and even paraphrased phrases, ensuring that your papers are always 100% free of plagiarism.

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Because Copyleaks uses built-in advanced OCR features you can check your paper assignments. Snap a photo and get your results in no time!

Full Comprehensive Report

Receive a complete list of similar sources from billions of online pages, open databases, and more. Then, see a side-by-side comparison of results, giving you the opportunity to fix any accidental plagiarism that might have occurred.

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In need of an assignment checker that works for your foreign language classes? Our technology can check text in over 100 human languages (including Asian character languages).

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Rest easy knowing you can quickly check all major file formats including PDF, Docx, HTML, txt and more. No extra steps are required; just scan and go. It’s that easy.

Codeleaks™ Code Plagiarism Detection

Codeleaks is the only solution available that detects plagiarism in over 20 Programming Languages, including JAVA, Python, C++, and more.

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The Copyleaks Similarity Report

Discover how Copyleaks SmartTextTM technology can help you and your academic journey. Get a complete, comprehensive report with accurate results of similar text sources with side-by-side comparisons in our similarity report.

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Free plagiarism checker

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  • 1 Write a paper
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Writing services to help you avoid plagiarism.

Choose the option that suits you best and get your essay going

Let the writer edit affected pieces following your essay instructions while leaving unaffected parts intact. Order this service only if you are sure of your writing skills and the essay doesn't require a total rewrite.

The best option for all kinds of plagiarism issues includes proofreading and editing. Not only will the assigned writer eliminate plagiarism, but they will also do a complete overhaul, rewrite your essay, and restructure it up to your instructions.


Choose this option if your needs are limited to just pointing out what has to be done to fix rare plagiarism occasions. Writers are very thorough with plagiarism and will provide possible solutions that best match your essay topic.

Free Online Plagiarism Checker with Percentage for Students

When students use online professional writing services, they expect to have original pieces written from scratch and according to their instructions. One of the most critical factors in using online writing services is that the pieces of writing they deliver to students are 0% plagiarism. Most writing companies check for plagiarism percentage but do not offer a free plagiarism checker online for a student to use when he asks, “check my paper for plagiarism.”

Sometimes students have written their essays and papers and want to use a plagiarism detector. They will not find an essay plagiarism checker to use on an online writing service – at least not the majority of them. When writing companies do offer additional resources, such as a free plagiarism checker, students come to trust that they are in the business of helping them rather than just making money. While knowing your plagiarism score is good, it is best to ask professionals " write my paper ," and there will be no plagiarism issues.

Plagiarism Checker for Students

Let’s face it. It’s easy to get a bit sloppy when doing research for a paper. An author’s words are paraphrased too closely to the real thing, a unique idea is not credited to its owner, and sometimes, even a direct quote is not cited correctly. All these things open a student up for charges of plagiarism, even if they write college papers from scratch with the best of intentions. Having a free online plagiarism checker for students, such as that offered by Trust My Paper, gives a student a neutral, objective source to ensure that no instructor will find plagiarized content in what he has submitted. And having a plagiarism detector that is a unique piece of software not used by anyone else is critical. More on that later.

There is also something called “self-plagiarism.” Most students are unaware of this issue, but it is accurate. Suppose a student has written a previous original piece and run through a common plagiarism detector used by many institutions. Now, he is writing a second piece on a similar topic and has decided to use a small percentage of content from that previous piece. Using that same common plagiarism detector will result in repeated content being flagged as plagiarized. Better to catch this with the Trust My Paper plagiarism checker before turning the paper in.

The consequences of plagiarism become more severe as students move through their schooling careers. A middle school student who writes his first research paper is a beginner and may not fully understand the “rules” of plagiarism. Rather than severe consequences, his teacher will probably re-teach those rules, point out what was plagiarized, and have him rewrite those parts. By high school, things get a little more serious, and students can face severely lowered grades on writing that contains plagiarism. Once in college, a student is expected to know the rules and to produce fully original work. Consequences for plagiarism are severe and can even include expulsion. If a student has any concerns about plagiarism, he must find an online plagiarism checking tool with percentage and clear his piece before submitting it. Trust My Paper has that tool.

Benefits of Free Online Plagiarism Checker by Trust My Paper

Let’s look at probably the most common online plagiarism detector – Turnitin. Most colleges use Turnitin campus-wide so that instructors will check papers for plagiarism through this software. And it’s a free plagiarism checker with percentage. Here is a typical scenario. A student finishes a paper and runs it through Turnitin. It gives him 95% originality, which is acceptable. He then submits that essay to his professor. That professor then runs it through Turnitin, and it comes back plagiarized. The student has some explaining to do, even though he did nothing wrong.

This is probably not your biggest worry when dealing with checking for plagiarism. You just want to ensure you have not goofed and plagiarized something by mistake. Often, these are failures to cite sources correctly or to paraphrase too closely. And if you use a good plagiarism checker with percentage, these issues will be identified so you can fix them.

You will not encounter undetected plagiarism issues when you use the free plagiarism checker on the Trust My Paper website. And there are some other significant benefits when you check a paper for plagiarism through our tool:

  • We provide a 100% guarantee of the results
  • We compare your piece with over 1,500,000 pieces of content on the web
  • We support 150+ languages
  • We use the latest, most sophisticated algorithms
  • It’s super easy to use
  • Shows originality in percentage

How Does Plagiarism Detection Work?

Once you have typed in Google “ check my paper for plagiarism,” you simply access it here, on the Trust My Paper website. The rest is self-explanatory:

  • Enter the title of the piece/document.
  • Paste/upload your piece.
  • Check the box that you agree with the “terms and conditions” and then click the “check for plagiarism” box.
  • Let the software do its work and provide you with a full report. That report will include the percentage of originality and point out any and all parts with similarities, along with the sources of those similarities.
  • If you need to fix some things, you can run the piece through the checker again until you have the desired results.
  • Once you have the results you want, you can download your report and turn it in with your work.

Once you have used it, you will believe ours is the best plagiarism checker you will find.

Advantages of Plagiarism Checker by Trust My Paper

Using Trust My Paper online plagiarism checker has several advantages that make it the preferred checker of most clients. These include the following:

  • You get a full report that will let you fix any issues quickly and be confident that you can turn in your work without worry.
  • You can check your paper for plagiarism as many times as necessary.
  • Our free plagiarism checker is free, no matter how many times you want to use it.
  • Your use of our plagiarism checker is confidential, and it is fast. You will get your report, usually within minutes, unless the piece is lengthy.
  • Accuracy is guaranteed because we use the latest software and algorithms.
  • You can drag and drop any type of file you have - .doc, .docx, .txt, .rtf, .pdf, .odt.
  • Our checker is super simple to use. Once you try it, you’ll want to use it for every piece you write.

Can I check my essay for plagiarism for free online?

Yes, you can find an online plagiarism checker in a lot of places online. Quality can vary, though. Scanners that use the most current technology and algorithms will give you a good result. But there is no way to always know if those are in place when you choose a checker and to get the accuracy and completeness you really need. When you decide to use Trust My Paper’s plagiarism, you will get the accuracy and the comprehensiveness you need. You’ll have an overall percentage of originality and a highlighting of any text that is a problem.

As a student, is it free for me to use Trust My Paper plagiarism checker?

Absolutely. No matter what your grade level, no matter where your institution is located, you can access our plagiarism checker for free, as often as you need, 24 hours a day. It supports a number of foreign languages, is fast and easy, and will even scan a large number of sources to ensure accuracy. Our plagiarism checker is one of several free resources we offer to students because we are committed to your success. Helping you make sure your writing work is 100% plagiarism-free is important.

Can I scan my research paper for plagiarism for free?

Yes, of course. Our plagiarism checker will scan, analyze, and report on any piece of writing in any document format. Once the scan is complete, you can then download the full report or have it emailed to you, so you can attach it to your work when you turn it in.

Will your plagiarism report be the same as the one used by my university?

Online plagiarism checkers from different types of programs/scanners will not “look” exactly the same. But the information they all provide will be the same. There will be a percentage of originality, and for most instructors and institutions, it must be 90% or higher. It will point out pieces of content that are too similar to existing content, found on huge databases or elsewhere on the web. The “meat” of any plagiarism checker for students will be the same, just in different sequencing.

Can I be punished for plagiarism?

You bet you can. Younger students who are new to writing essays, papers, book reports, and such will not face the consequences. Their teachers will point out plagiarism and explain why it is wrong. As students get older, punishments will be in place for plagiarism. By the time students are in college, consequences can be mild to severe, depending upon the instructor and the institution’s policies. Our advice? Take no chances. Run everything you write through the Trust My Paper free checker, and submit your work with confidence.

What does a free plagiarism checker with percentage mean?

Many free plagiarism checkers only tell you if your content is original or not. That can be misleading. In truth, almost no content is 100% original. Commonly used phrases, quotes, and other similar content will count as content that isn’t completely original. Don’t forget about self-plagiarism! This is when a student uses their own previous work, but doesn’t cite it. In addition to this, different schools and organizations allow different thresholds of originality.

A free plagiarism checker with percentage doesn’t just showcase spots where there may be issues with originality. It shows you exactly how much of your paper is completely original. This lets you determine if you need to change anything.

All of these are clear reasons why you need a plagiarism checker that provides an accurate percentage. This will allow you to verify that your content is as original as it needs to be.

What percentage of plagiarism is considered bad?

That depends on the standards set by your instructor or school. It also depends on how you are presenting any information you have lifted from other sources. For example, a paragraph-long quote that is properly sourced and attributed is not plagiarism. However, it may show up as content that isn’t original. On the other hand, if you steal a shorter quote, and pass it off as your own thought, without giving credit, that is plagiarism.

In many cases, you can find out what the expectations are. Sometimes, your instructor will publish the percentage of originality they expect in the assignment rubric. In other cases, it will be with the course rules.

Don’t forget to learn what will happen if you should turn in a paper that isn’t completely original. In some cases, the consequences could be failure or expulsion. In other instances, your instructor may simply wish to review your paper to ensure that you have given proper credit.

I cited my sources, is it considered plagiarism?

In some instances, the answer is yes. For example, if you use someone’s exact words, but fail to use quotes, that may be considered to be plagiarism. You can avoid this by properly attributing words using quotes, in addition to citing your source. Sometimes, it is best to paraphrase or reword the statement.

Can you detect plagiarism without a plag checker?

There may be a few things you can do to look for plagiarism in your writing. For example, you can:

  • Do a Google search on passages of your writing to see if it finds matching content.
  • Double-check that all of your writing uses quotations and citations properly.
  • Look for visual cues in your paper. For example, a passage that uses a different font may be something you copied in, then forgot to paraphrase or quote.

You may also ask someone you trust to review your paper.

Unfortunately, while these actions may help, none of them are a decent substitute for a reliable plagiarism detector. Remember that online, plagiarism detection software can quickly access and review more than a million papers, articles, and other content. You simply cannot match that using any other tool or technique. That is why it is best to rely on a high-quality plagiarism checker that gives you an originality percentage.

Is it safe to check for plagiarism online?

Absolutely! In fact, this is the safest, most convenient method there is. Did you know your instructor or employer will likely use an online checker to ensure your work is original? It only makes sense that you would gain peace of mind by having your writing double-checked for plagiarism by a company that is established in the field of academic writing. Here are some things to consider as you look for a plag checker online:

  • Does the service have connections with reputable academic databases?
  • Have students been satisfied with their experiences with this service?
  • Is it easy to use the plagiarism checking tool?
  • Does the company that offers the service have an excellent track record in the field of academic writing?
  • Will the tool check for self-plagiarism?
  • Can the student expect to receive an accurate number that reflects their originality?
  • Is there multiple language support?
  • Is it free?
  • Can you use the plagiarism checker multiple times for a single paper?

Our plagiarism checker has all of these features. Further, you may drag and drop files, or use copy and paste. All standard file formats are supported.

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Free Online Thesis Statement Checker!

This thesis Checker online has powerful artificial intelligence which can instantly detect even the smallest of grammatical errors in your writing. It doesn’t only identify the errors but also suggests corrections in the sentence structure of the copy.

Below are a few examples:

The thesis statement checker corrects your spelling

The neccessary changes were made to the document.

The necessary changes were made to the document.

C orrect the use of past, present, and future tenses

I has done my homework.

I had done my homework.

I have done my homework.

Detect missing conjunctions and recommend adding them

All rules, procedures, regulations must be followed.

All rules, procedures and regulations must be followed.

It can omit unnecessary words or phrases

First of all it is important to boil the water.

Firstly , it is important to boil the water.

It corrects the punctuation

At last We we’re at the park safe and sound.

At last, we were at the park, safe and sound.

Gives feedback and advice on corrections

Thesis checker by Sentencecheck

It is important to however note that this tool does not offer plagiarism detection for now. You can refer to Grammarly to check your thesis paper for plagiarism.

Why use SC’s online checker?

  • Easy to use – our online thesis checker is beginner-friendly and easy to use. Anybody from studentss to teachers can use this tool to identify and correct punctuation, grammar, and spelling mistakes.
  • Better sentence structures – by using our checker you can improve your sentence structures which will help you clearly express your ideas and will convey your message efficiently. There is nothing more frustrating for a student to write an exceptional and well-researched paper only to have it misunderstood by their readers.
  • Instant results – after pasting your text in the editor, you will get instant results identifying exactly what to correct and how to correct it.
  • Free to use – we know that many students might not have money to spare to spend on a premium thesis checker which is why our tool is totally free to use with no limitations and doesn’t even require any sign up you just copy your text in the field and preform your check.

How a Thesis is made ?

A thesis or dissertation is made by choosing a unique topic, asking questions, and collecting data.

For any successful thesis, students should write an error-free paper as plagiarism, grammar mistakes, and incorrect punctuation can leave a bad impression on the reader and also make you lose marks on what you thought was a good paper.

Having great ideas and conducting significant research is a necessary part of the process, however, it’s not the only component of writing a good thesis.

An excellent academic thesis clearly expresses the unique ideas and insights of the student using proper punctuation, good grammar, and accurate spelling.

These things alone are enough to overwhelm any student but your teachers and professors will give you good grades on this.

This is where our Online Thesis Statement Checker comes in handy. Even though it is possible to proofread and correct your own errors manually, our online tool saves you a lot of time and effort by highlighting all the issues in your writing.

It helps the student in having the perfect thesis for submission.

Frequently Asked Questions

What’s a thesis.

A thesis or dissertation is a document submitted alongside a project that explains the student’s ideas, viewpoints, and arguments regarding the paper which gives the reader an insight into his perspective.

It is often required for the completion of a degree program. It can take months or years of research and writing to conduct and present.

Can I Trust an Online Checker?

This is one of the most common concerns of students as they feel it is risky to trust online software to proofread their assignments.

The SC’s online checker tool uses powerful artificial intelligence to identify and highlight mistakes in your writing and suggest the appropriate corrections.

However, it should be noted that you should not trust any tool blindly. Because these are just tools to help you improve your writing.

In order to be fully confident whilst submitting your document. Go through the document at least once after checking it through our online checker.

Can I use it on Any Device?

Yes, our online thesis statement checker has a responsive web design meaning it will be able to work on both your desktop and mobile devices.

Who Uses Online Thesis Checker?

The students use this to present a spot-on thesis for their assignments.

These are usually students going to universities for their graduate degrees as most Bachelor , Master, and PhDs require a thesis to be made.

However, it’s not uncommon for teachers and even professors to use this tool to check their or their student’s writing.

Can I Detect Plagiarism With This Tool?

No, This tool does not offer plagiarism detection. You can however refer to Grammarly to check your thesis for plagiarism.

Plagiarism Checker

Detect plagiarism accurately with scribbr’s free plagiarism checker.

Scribbr is an authorized Turnitin Partner

Rely on the most accurate plagiarism checker of 2022

Scribbr’s plagiarism checker, powered by Turnitin, detects plagiarism more accurately than other popular tools — particularly when texts are edited. This makes it the go-to plagiarism checker for students in the UK.

See test results

Free plagiarism risk analysis

Find out if your writing contains potential plagiarism

The free plagiarism checker, powered by Turnitin, will give you a heads up if your writing is similar to the content in our database.

See a list of top matching sources

View your top 5 matching sources

The Sources Overview shows you the top five sources that match your writing. You can see the domain, database, and the number of matching words for each source. It’s important to cite these sources!

Submit your paper with confidence, knowing it’s free of plagiarism

Make your writing plagiarism-free with the premium plagiarism checker.

Get a precise plagiarism percentage

Get a precise similarity percentage

The premium plagiarism checker provides you with an accurate similarity score that tells you what percentage of your paper is not original.

Review similarities for plagiarism

Review highlighted text snippets for missing citations

Similarities in your document are highlighted for quick and easy reviewing. Each color corresponds to a source in the Sources Overview.

Plagiarism report with side-by-side comparison

Compare your writing to the original text side by side

Use the comparison feature to see how similar your writing is to the original without leaving the plagiarism checker report.

Check for self-plagiarism by uploading unpublished works

Check for self-plagiarism by uploading previous assignments

Upload previous assignments or a classmate’s paper to catch (self-)plagiarism that is otherwise difficult to detect by regular plagiarism checkers.

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Institutions interested in buying more than 50 plagiarism checks can request a discounted price. Please fill in the form below.

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Excellent Review score

Scribbr’s plagiarism checker is rated 4.9 out of 5 based on 3,327 reviews.

Privacy guarantee

Privacy guarantee

Submissions will never be added to our content database. Therefore, no other plagiarism checker will see your text.

Turnitin Similarity Report

Scribbr's plagiarism checker is perfect for you if you:

  • Are a student writing an essay or paper
  • Value the confidentiality of your submissions
  • Prefer an accurate plagiarism checker
  • Want to compare your work against publications

This plagiarism checker is not for you if you:

  • Are a copywriter, SEO, or business owner
  • Need to check lots of documents for plagiarism

Start for free

The go-to plagiarism checker for students and academics

University applicant

University applicants

Ace your personal statement for your university application.

Compare your UCAS personal statement against billions of webpages, including other essays.

  • Avoid having your personal statement flagged or rejected for accidental plagiarism.
  • Make a great first impression on the admissions officer.


Submit your assignments with confidence.

Detect plagiarism using software similar to what most universities use.

  • Spot missing citations and improperly quoted or paraphrased content.
  • Avoid grade penalties or academic probation resulting from accidental plagiarism.


Take your journal submission to the next level.

Compare your submission to millions of scholarly publications.

  • Protect your reputation as a scholar.
  • Get published by the journal of your choice.

Student running a plagiarism check

You don't need a plagiarism checker, right?

You would never copy-and-paste someone else’s work, you’re great at paraphrasing, and you always keep a tidy list of your sources handy.

But what about accidental plagiarism ? It’s more common than you think! Maybe you paraphrased a little too closely, or forgot that last citation or set of quotation marks.

Even if you did it by accident, plagiarism is still a serious offense. You may fail your course, or be placed on academic probation. The risks just aren’t worth it.

Scribbr & academic integrity

Scribbr is committed to protecting academic integrity. Our plagiarism checker, APA Reference Generator, proofreading services , and free Knowledge Base content are designed to help educate and guide students in avoiding unintentional plagiarism.

We make every effort to prevent our software from being used for fraudulent or manipulative purposes.

Ask our team

Want to contact us directly? No problem. We are always here for you.

Support team - Nina

Frequently asked questions

Extensive testing proves that Scribbr’s plagiarism checker is one of the most accurate plagiarism checkers on the market in 2022.

The software detects everything from exact word matches to synonym swapping. It also has access to a full range of source types, including open- and restricted-access journal articles, theses and dissertations, websites, PDFs, and news articles.

The Scribbr Plagiarism Checker is powered by elements of Turnitin’s Similarity Checker , namely the plagiarism detection software and the Internet Archive and Premium Scholarly Publications content databases .

Your document will be compared to the world’s largest and fastest-growing content database , containing over:

  • 99.3 billion current and historical webpages
  • 8 million publications from more than 1,700 publishers such as Springer, IEEE , Elsevier, Wiley-Blackwell, and Taylor & Francis

Note: Scribbr does not have access to Turnitin’s global database with student papers. Only your university can add and compare submissions to this database.

At the moment we do not offer a monthly subscription for the Scribbr Plagiarism Checker. Plagiarism checks can be bought separately — prices depend on the size of your document.

Your writing stays private. Your submissions to Scribbr are not published in any public database, so no other plagiarism checker (including those used by universities) will see them.

The free plagiarism report tells you if your writing contains potential plagiarism. The premium report gives you the resources you need to make your writing plagiarism-free.

Generating your (free or premium) plagiarism report takes between 1 and 10 minutes, depending on the document size.

In that time, your document is compared to the world’s largest content database, with over 99 billion webpages and 8 million publications.

Scribbr’s plagiarism checker offers complete support for 20 languages, including English, Spanish, German, Arabic, and Dutch.

The complete list of supported languages:

If your university uses Turnitin, the result will be very similar to what you see at Scribbr.

The only possible difference is that your university may compare your submission to a private database containing previously submitted student papers. Scribbr does not have access to these private databases (and neither do other plagiarism checkers).

Luckily, many papers, theses, and dissertations are also published in public databases that Scribbr does have access to.


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  9. Scribbr Plagiarism Checker step 1

    Upload a Microsoft Word, PDF or ODT file of your paper, enter your details and pay. 2. Wait a few minutes. Your document is compared to billions of web pages, books, articles and more. This may take a few minutes. 3. Receive the report. Similarities are highlighted and matched to the source. You also receive a plagiarism score.

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    Trinka's advanced thesis grammar checker will remove spelling and grammatical errors from your thesis or dissertation and improve its overall language quality and presentation. Overall Language Enhancement Polish your writing with Trinka's language tips on enhanced vocabulary, tone, syntax and much more. Retain Original Formatting

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