Plagiarism Checker

To use this tool online, copy-paste text or select a file to upload. Next, click on the Check Plagiarism button to find plagiarism percentage.

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  Upgrade Level
  • Deep Search
  • No Ads
  • Support
  • Accourate Reports
  • Check Upto 25,000 Words
  • Go Pro
Plagiarism Result

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Plagiarism Checker Free

Plagiarism checker is a free online tool that helps writers, bloggers, and webmasters to check for plagiarism. It scans and compares files against the submitted text to detect plagiarism.

Words Limit For Our Plagiarism Checker is Explained Below:

Visitors  (Free but Unregistered) 1000 words
Basic Users (Free but Registered) 1500 words
Basic Premium Users 5000 words
Standard Premium Users 15000 words
Company Premium Users 25000 words
Organizations / Enterprises Unlimited words

What is Plagiarism?

As Wikipedia says,

“Plagiarism is the representation of another author's language, thoughts, ideas, or expressions as one's own original work.”

According to Merriam-Webster,

"To steal and pass off (the ideas or words of another) as one's own : use (another's production) without crediting the source"

For details, check plagiarism.org

How Does Our Plagiarism Checker Work?

Our plagiarism checker free and accurately detects duplicate content. This essay checker uses advanced AI to generate plagiarism reports.

It works better than Turnitin. Apart from the student's archived thesis, it scans online-available data on search engines to check plagiarism.

This plagiarism checker online assists you to detect similar content across the web. It has an advanced algorithm that allows our plagiarism detector to find copied or paraphrased content. After finding plagiarism, it provides links to plagiarized sources.

We have developed this plagiarism checker to identify all types of plagiarism i.e. incremental, patchwork, and accidental plagiarism.

How to Check Plagiarism Using this Tool?

This copyright checker offers a simple interface. Follow the steps below to find copyrighted content:

  • Copy your text and paste it in the given input box.
  • You can upload a file too. Click on the Select File button to upload a document from local storage or import files using the Google Drive option.  
  • If you want to exclude a specific URL, click on the Exclude URL button and paste the URL in the input box.
  • You can exclude quotations by clicking on the Exclude Quotes checkbox.


  • Hit the Check Plagiarism button to start plagiarism detection. 

On completion, you'll get:

  • Percentage of plagiarized content
  • Percentage of unique content
  • Exact phrase match
  • Matched sources
  • Paraphrased match percentage
  • Words count, and
  • Readability

Key Features of our Duplicate Checker

Some of the key features of our duplicate content checker are given below:

1. Upload File to Check Plagiarism

Upload files from local storage to check for plagiarism. It offers support for various file types such as doc, docx, pdf, txt, etc.

2. Exclude Specific URL

Our copyright checker allows you to exclude specific websites and webpages from being included in the plagiarism check. This can be useful if you want to omit your own website from being scanned when checking for plagiarism in a piece of content.

3. Exclude Quotes

Before starting the check, you can also check the ‘Exclude Quotes’ box to stop the tool from checking quoted content for plagiarism. This will help you get a more accurate plagiarism percentage.

4. Word Count and Clear Field Option

When importing your content to the tool, the exact word count will be provided below the input box. If you want to clear the field for a fresh start, you can click on the Delete icon to erase the input.

5. Ensured Content Safety

The content you check on Prepostseo is 100% safe and secure. We respect your intellectual property and don't save the content in any repository.

6. Plagiarism Reports Generation

You can download reports in HTML and PDF format. Click on the Download Report button to get the full report.

7. Results with Sources & Percentage

  1. It underlines the text and gives the source of plagiarism.

  2. It gives the percentage of plagiarized and unique content.

    Plagiarism checker with percentage

8. Make it Unique 

After checking for plagiarism, click on the Make it Unique button.

This will open our paraphrasing tool that you can use to paraphrase your content to avoid plagiarism.

9. Deep Search

Prepostseo plagiarism checker uses its own deep search algorithm to check plagiarism online by conducting deep web searches all over the internet.

We provide a free online plagiarism checker with percentages that help you determine how much original and copied content you have in your document. And it provides a detailed analysis of original and copied content, with matching sources.

10. Easy to use

The plagiarism percentage checker by Prepostseo is very easy to use. All the features are prominently displayed and the process is quick and simple. You just have to enter your content and click on the “Check Plagiarism” button to start the scan. If you are on a free plan, you will also have to complete the captcha first.

11. Rewrite the Plagiarized content

Our Sentence rewriter rewrites plagiarized content to make it unique. After clicking on the plagiarized sentence, you can click on the ‘Rewrite’ button. This will make your content unique and free from duplication.

12. Citation Generator

You can create citations for your content quickly and easily using the in-built citation generator. In the results, you can simply click on the plagiarized sentence and then select the ‘Cite it’ option to open the citation generator.

13. Plagiarism Remover

Prepostseo plagiarism remover option helps you to remove duplicate content. It works sentence-wise and makes your text 100% unique.

14. Multiple language support

You can check plagiarism in French, Dutch, Spanish, and many other languages.

15. Chrome Extension

Prepostseo plagiarism checker offers a Google Chrome Extension to find duplicate content online.

16. Plagirism Checker API

You can integrate our plagiarism checker API with your website or online platform for smooth and seamless plagiarism detection.

17. WordPress Plugin

This plagiarism checker is also available as a WordPress plugin. You can set it up with your WordPress website to check for plagiarism easily.

18. Mobile Apps

You can download our mobile app on your phone and check plagiarism anywhere. we offer:

19. Desktop Application

Our plagiarism-checking tool is also available as a desktop application. You can use it as a:

Prepostseo plagiarism Detector can be used by


Students can use this online plagiarism checker to find out if their assignments and submissions are free from plagiarism.


Teachers can use this tool to check if their students are submitting the original work or just copying it from the internet.


Researchers have to publish a lot of material for their research.

They should make sure that their publications and research is original, and they are not accidently publishing plagiarized content. So, they can perform an instant plagiarism check to ensure the originality of their research by using this free online plagiarism checker.

Content writers & bloggers

Publishing original content is key to higher SEO rankings.

Writers, bloggers, and article writers can use our free plagiarism checker to check the originality of their articles.

Feedback from our users

Prepostseo has 90,000+ happy clients including Webmasters, College Students, University Teachers and Content Writers around the globe. Positive feedbacks from previous customers are enough proof that we have the most accurate Tools.


Well, a lot of online free plagiarism checkers are available but no one provide the accurate report. Those who claim to produce, their reports are either poor or untrustable. As a writer, I have to write100% unique content and need to show the reports to my clients. Prepostseo is the perfect plagiarism report generator that I ever found on the internet. Now I'm stress-free about plagiarism reports.

~ Aimee ~
Writer, freelancer


PPS plagarism checker is best and easiest plagiarism scanner available. I have to check my papers on regular basis because plagiarized assignments are not acceptable. Thanks for your great effort to make this tool free for normal users.
it's the best online Tool i have ever used. Very fast and accurate.

~ Asad Ahsan ~
CEO, xclicx


I was always worried about posting articles to my blog because I was unable to find a premium quality plagiarism analyzer. But I am thankful to the whole team of prepostseo who made this awesome tool.

i think this is the only single tool available on internet that check content deeply.

~ Muddsar Sardar ~
Manager, KRT Solutions