Promote Integrity. Protect Originality. Prevent Plagiarism.

Detect plagiarism, paraphrased content, and similar text using sophisticated Artificial Intelligence
(AI) based algorithms in 100+ languages with our online anti-plagiarism software.


For students, teachers, writers, bloggers, and freelancers: use our online plagiarism checker to access billions of sources. Improve the quality of your work. Start today! No credit card required.


For universities, schools, and educational institutions: learn more about our plagiarism detection integration into LMS platforms such as Canvas, Blackboard, and Moodle.


For businesses of varying industries such as media, law, and government: learn how our API can integrate into your platform and fully protect you and your content.

Trusted By Leading Organizations

What is Copyleaks Plagiarism Detection Software?

Copyleaks is a comprehensive plagiarism detector platform that performs extensive searches across the Internet and various databases. With our AI software, you can scan documents, raw text, code, and URLs in 100+ languages, complete with a detailed report on the findings of each scan. Through our LTI and API integrations, we also support organizations in protecting against copyright infringement and academic plagiarism.

Our Tools

We offer a wide array of plagiarism detection tools, such as our API and LTI integrations, file comparison, code checker and automated essay grader. By scanning for plagiarism with Copyleaks, you are ensuring that your content has been checked for any accidental cases of text lifting, cheat detection and protection from copyright infringement.

Mostly Used By

Educators & Academia

In the education world, we understand the importance of academic integrity, therefore, we have a checker for education. It’s crucial that teachers always use a duplicate content checker to check plagiarism online with Copyleaks either through the web-based solution or their LMS to be sure that students didn’t accidentally plagiarize the content.

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Man and woman working together and looking at screen

Enterprise & Small Business

Copyleaks is one of the best plagiarism software detection tools in the market, with different features and capabilities to fit the needs of various businesses. Scanning and checking documents for original content just got easier using our anti-plagiarism online service or our API which integrates the Copyleaks software onto the business’ own platform.

Student & Individual

As a student, blogger, or freelancer, it’s important to check that you cite your references accurately. The best way to do this is by running your assignments through the Copyleaks checker for students and writers. The Copyleaks plagiarism check runs a comprehensive search against billions of pages on the internet. If you have written on a similar topic in the past, it is a good idea to compare documents with each other using our Duplicate File Finder tool or compare two texts using Copyleaks’ Text Compare tool.

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Man typing on laptop in data server center

Security & Data Safety

Your data’s security and safety is our top priority. Military-grade 256-bit encryption and SSL connection ensures your document content and account is always safe and secure. To add an additional layer of security, Copyleaks is a fully self-service platform, which means only you have control over your account and those you share it with.

Data safety is something we take very seriously. You are the only one who can see the content you submit, which is never exposed to third parties or other users. In addition, the content submitted by you further prohibits others from plagiarizing your work.

Join us today