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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Limit/Search: 1000 Words   Check Upto 25,000 Words 
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Plagiarism Checker:

Plagiarism checker is an 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?

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

It has an advanced algorithm that allows our plagiarism detector to find copied or paraphrased content. After finding plagiarism, it provides the link of plagiarized sources.

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

How to use this tool?

It offers a simple interface. Follow the steps below:

  • Copy your text and paste it in the given input box.
  • You can upload a file too. Click on Select File button to upload a document from local storage.
  • If you want to exclude specific URL, click on Exclude URL button and paste the URL in the input box.

  • Select the language to check plagiarism in any other language.

  • Hit the Check Plagiarism button to complete 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


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 of various file types such as doc, docx, pdf, txt, etc.

2. Chrome Extension

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

3. 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.

4. Plagiarism Reports Generation

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

5. Results with sources & Percentage

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

  2. It gives percentage of plagiarized and unique content.

    Plagiarism checker with percentage

6. Make it Unique 

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

This our paraphrasing tool to paraphrase your content to avoid plagiarism.

7. Deep Search with 

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

8. Multiple language support

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

9. Mobile Apps

You can download mobile app in your phone and check plagiarism anywhere. It offers:

10. Plagiarism Remover

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

Prepostseo plagiarism Detector can be used by


Students can use this 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.

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.

— Application — google play store

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