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GPTHumanizer AI
WRITE WITH CONFIDENCE

Free Plagiarism Checker
Clarity in every match.

Find matching text. Understand the sources.
Give your writing one thoughtful check before you submit.

0 / 2,000 words

Potential source matches will appear here.

Passage-level reviewSource-by-source clarityUnderstand your results

FROM DRAFT TO CONFIDENT NEXT STEP

A little review.
A lot more clarity.

Go beyond a percentage. Understand what matches, where it comes from, and what deserves another look.

01

Add your writing

Start with your essay, assignment, or article. Paste up to 2,000 words and run one check.

02

Explore the matches

See how highlighted passages and source details can make a similarity report easier to understand.

03

Review with context

Check quotations, add missing citations, and revisit wording that follows a source too closely.

THE STORY BEHIND THE SCORE

A match is a clue.
Look a little closer.

A correctly cited quotation and an uncited paragraph need different responses. Your report should help you tell them apart.

A closer look
Illustrative example

IN YOUR DOCUMENT

“Clear attribution helps readers trace ideas back to their original source.”

MATCHING SOURCE · EXAMPLE A

Clear attribution helps readers trace ideas back to their original source.

Check the citation

Quotation marks identify the borrowed wording. Add a citation so readers can find the source.

Context matters more than a single number.

FOR EVERY KIND OF DRAFT

Your words. Worth a second look.

Essays & assignments

Catch overlooked quotations and review attribution before submitting your work.

For students

Research & papers

Take a closer look at paraphrases, technical language, and your previously published writing.

For researchers

Articles & web content

Review matching wording in blog posts and commissioned drafts before publication.

For writers & editors

KNOW WHAT YOU’RE CHECKING

Clear expectations.
Better decisions.

Similarity is not a plagiarism verdict

Matches need human review. A high score can include legitimate quotations; a low score can still contain unattributed material.

Different tools can give different results

Source coverage and settings vary. One checker’s result cannot guarantee the same score from your institution’s service.

AI detection is a separate question

Text similarity looks for overlap with sources. AI detection estimates how text may have been written.

GOOD QUESTIONS. CLEAR ANSWERS.

Before you
hit check.

Understand the result,
not just the number.

Is this plagiarism checker free?

Yes. You can check your text here at no cost. Scanning allowances and pricing are still being finalised, so the limits on this page may change.

What is a good plagiarism percentage?

There is no universal acceptable percentage. Review what matched and follow your institution’s or publisher’s requirements. Properly cited quotations and references can contribute to similarity.

Will my results match Turnitin?

Different services use different databases and settings. A similarity report cannot guarantee a particular Turnitin score.

What happens to the text I paste?

Your text is sent to our plagiarism-scanning provider so it can be compared against their index of web and published sources. This page does not store your text or your report. The provider keeps submitted content under its own privacy policy, so avoid pasting confidential material.

Does 0% similarity mean there is no plagiarism?

No. It means a tool did not identify matching text within its coverage and settings. You should still check that borrowed ideas and quotations are correctly attributed.

Why do quotations and references appear as matches?

Quotations repeat exact wording and references use standard formats. Review their context and attribution rather than removing required references to lower a score.

Can I check a full thesis or upload a document?

Not yet. This checker takes pasted text only, up to 2,000 words per scan. File uploads and long-document support are not available here.

Can a checker detect paraphrasing?

Only to a limited extent. This checker looks for wording that overlaps closely with a source, so a rewritten passage often produces no match at all. Paraphrased ideas still need a citation even when nothing is flagged.

MAKE YOUR NEXT DRAFT YOUR BEST

A clearer picture of your writing.

Find the matches. Check the context. Make your next move.

Try the free checker