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Plagiarism Checker

Our free plagiarism checker is widely used to check plagiarism online.This accurate plagiarism detector provides solutions for colleges, universities and deeply detects plagiarism in research work.  


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Check Plagiarism

Fast & Accurate

Our plagiarism checker online scans your text against billions of web pages & documents. You can check upto 1000 words per search for free. (For premium users, the word limit is increased to 20,000). upgrade to pro in just $7

100% Safe & Secure

We do not save your data. All files and documents checked with our free plagiarism checker are 100% safe & secure. The reports are deleted instantly. This plagiarism tool does not save your text/docs in our database.

Multiple files support

You can check plagiarism for up to 5 documents at once (supported formats: doc, docx, txt, and pdf). Scanning multiple papers for plagiarism will not decrease the speed. You can also compare documents for plagiarism between them.

Easy to Understand

Our plagiarism checker makes users understand their results easily. It provides a simple process to check for plagiarism. You can generate a detailed report for your real-time results fetched against billions of online resources.

Enhanced Reporting with percentage

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

Sentence based checking

This plagiarism checker free scans every single sentence and compares it with all online resources to detect plagiarism. It uses advanced AI algorithms and highlights the plagiarized and unique sentences within seconds.

Why Check-plagiairsm?

ribbon  Safety Assured Safe Plagiarism Checking.
💯  Quality Guaranteed Plagiarism Detection with 99% Accuracy
✅  1 000 001+ Checks Deep Analysis against Whole Internet
🈐    Multi-Lingual Supports 12+ Languages
📃  Extensive reporting Percentage based Reporting with Real Source Indication
⌛  Real-time Comparison Check for plagiarism in Real-time


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.

  1. 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.
  2. 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. 
    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.
  3. 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 format.
  4. Writers use 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.
  5. Webmasters use this tool to make sure their content is plagiarism-free because
    1. Plagiarized content can damage the reputation and credibility of a website.
    2. Its also important because google has clear policies on plagiarized content and penalizes websites that contain copied content.
    3. It can lead to legal problems, If the original content is protected by copyright. 
  6. Educational institutes (colleges and universities)can integrate our tool using Plagiarism APIs.
  7. Law firms use this tool to protect the documents of their clients. 

Check more details about how to avoid plagiarism

plagiarism checker 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:

  1. Type or paste your text into the input box.
  2. Or, upload documents by click the upload icon (upload). you can upload file of 1000 words (you can increase limit to 20,000 words per search by getting pro membership). we do not store or share any of our users' data, all uploaded files are deleted immediately.
  3. Exclude URL (if any) from the “Show Advanced” option. This url will be ignored while checking plagiarism, any text copied from the excluded url will be marked as unique content.
  4. Click on the Check Plagiarism button. We have added recaptcha security to avoid robots. 

All done? No extra steps 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 the paraphrased plagiarism.  

how to use plagiarism checker

We Cover Multiple Platforms

We have developed solutions for one of the most popular platforms, which is WordPress. You can download our plagiarism checker plugin and check the quality plagiarism/duplication of your content directly from your admin panel. If you want to facilitate your users, you can also add our widget to provide your users with a plagiarism software directly from your website. Universities, colleges, and other educational institutes can integrate our APIs to detect plagiarized content from their portal.  

Wordpress plugin

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

Wordpress Plugin
Plagiarism APIs

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

Plagiarism APIs

How it Works

Content is first parsed into sentences and then every sentence is checked for plagiarism. If any result 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 content in seconds with very accurate results. According to me it's the best anti-plagiarism 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.