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The #1 Plagiarism Checker

Trusted by over 1.2 million students, teachers, and professionals worldwide

Introducing DeepSearch

With DeepSearch, we've redefined what a plagiarism checker can do. Our exclusive plagiarism checker was built from the ground up, and is the most reliable way to check your work any missed citation opportunities.

Check for Plagiarism FREE!

Get even more with PRO!

DeepSearch

DeepSearch is the most advanced plagiarism checker available. Learn more

Multiple File Upload

Upload up to 5 files at a time to check papers simultaneously. Supports PDF, Microsoft Word, and plain-text file types.

Plagiarism Checker (unlimited!)

Other services charge for each check, but we give you total freedom to use the plagiarism checker as much as you need! Your results automatically get saved as an interactive report that you can view, export, or delete within your account.

Increased Word Limit

PRO users can search up to 25,000 words at a time (thats 50 pages!)

PDF Reports

Export your report in an easy to read PDF with 1 click!

Exclude Sources

Easily exclude any sources you don't want to show up in your results. Enter any URL, and the plagiarism checker will ignore them for future searches.