Plagiarism Checker
Check your content for matching text and potential plagiarism with an easy-to-use plagiarism checker.
Why Humanize AI's Plagiarism Checker?
Checked Against the Web
Each sentence is searched on the web, so copies on public pages Google can reach are found.
Clear Results
See a similarity score and which sentences match text found elsewhere.
Free to Try
The free plan checks up to 1,000 words a month. Paid plans check more.
Every Source Listed
Each match links to the page it was found on, so you can open it and compare.
How to use Humanize AI's Plagiarism Checker?
Experience seamless plagiarism detection in three easy steps:
Copy and Paste Your Text
Paste the text you want to check into the box.
Scan for Plagiarism
We search the web for the sentences in your text and compare what comes back with what you wrote.
Read Your Results
When the check finishes, you see a similarity score, the sentences that match and the pages they were found on.
Why You Should Check For Plagiarism
Maintain Academic Integrity
Ensure your work meets academic standards and avoids accidental plagiarism.
Accidental Plagiarism
Safeguard your credibility as a writer or student by submitting only original content.
Catch It Early
Find matching passages before you hand in or publish your work.
How to Read Your Results
The similarity score is the share of your text that matches text we found on other pages. A sentence counts as a match when the same words, or nearly the same words, appear on a page the web search returned.
Some matches are fine: quotes, common phrases, definitions, your own text published somewhere else and passages you cite properly can all match. Open each source and decide.
We check public web pages that Google can reach. Pages behind a login or paywall, private documents and most academic databases are outside the check, and heavily reworded text can slip through. A score of 0% means we found no copies on the public web.