Free Plagiarism Checker: Find Copied Sentences Online
Start free
Free SEO tools/Plagiarism Checker
A marketing consultant at a standing desk in a bright studio, reading a website report with a green score ring on a large monitor
Free plagiarism checker

Find the sentences, that already live on another site.

Paste up to 1,000 words. Sample sentences are searched across the web; you get the matches, the sources and a uniqueness score.

Check for copies All 27 free tools

FreeNo accountResult on the page and by emailAbout ten seconds

Writing tools categoryfree costnone accounton the page and by email result
Run the check

Plagiarism Checker

Up to 1,000 words.

Free, no account. Tell us where the result should go, type the code from the email, and the check runs.

What it checks

Sampling

Up to eight sentences are picked across the text, the ones long enough to be distinctive.

And

Search

Each is searched as an exact phrase; a page carrying the same run of words is a match.

Also

Score

Unique sentences over sampled sentences, with every match and its source listed.

How to read the result

What to do with it

  • A match on a quote or a common phrase is fine; a match on your own product copy means it was copied, by you or from you.
  • The score is on the sampled sentences, not every sentence.
  • Use the sources list to request removal or to rewrite.
The next step

When one page is not enough

These tools check one thing at a time. The free SEO audit crawls a whole site and emails a report with the findings in priority order, and the paid plans turn that report into a proposal with the money at stake.

Run the free audit See the plans
Related tools

Usually run next

Writing toolsGrammar Checker

Paste up to 800 words. You get the corrected version and a list of the changes, each with a reason.

Open the tool Writing toolsParaphrasing Tool

Paste up to 500 words. A plain rewrite, a formal one and a shorter one.

Open the tool Writing toolsWord Counter

Paste anything. Words, characters, sentences, paragraphs, reading time, speaking time, and the words you use most.

Open the tool Writing toolsText Summarizer

Paste up to 1,500 words. A one-line summary, the key points, and a short paragraph that keeps the author's claims.

Open the tool
Questions

About the plagiarism checker

How does the check work?

It samples sentences from the text and searches each as an exact phrase across the web. When another page carries the same run of words, that page is listed as a source.

Is it a full-text scan?

No, it is a sample-based check, which finds copied passages reliably but can miss a single copied sentence outside the sample. Run it twice with different text if you need more coverage.

Does it detect paraphrasing?

No. Reworded text does not match an exact phrase search. It finds copies, not rewrites.

Is my text stored?

The text is kept with the result for you to open again by link, and deleted after ninety days unless you asked for the email.