Plagiarism Checker

Q: How do I check my essay for plagiarism?

Paste it into the box above and read the result. Distinctive phrases from your essay are searched for, the pages that come back are fetched, and anything that genuinely overlaps is shown to you with the source beside it. You check plagiarism online here with nothing to install and no account needed for your first check, so the whole answer takes about as long as the search does.

Q: Are plagiarism checkers accurate?

This one reports only what it could verify. A candidate page is fetched and compared against your words before it counts, so the passages you are shown really are on the page it names, and the score is the arithmetic over them rather than an estimate. Where any checker is limited is COVERAGE: it can only find what it can reach, so a match is solid evidence and a clean result means nothing was found on the open web, which is a narrower claim than "original".

Q: Can a plagiarism checker detect ChatGPT?

No, and that is not a fault in the checker. A language model usually writes wording that exists nowhere else, so there is nothing for a plagiarism check to match against and the text comes back clean. They answer two different questions: this one asks whether your words appear somewhere already, and an AI checker asks how the writing reads. Check for AI writing if that is the question you have.

Q: Is there a free plagiarism checker?

This one runs free, with a daily allowance. Signing in raises it, and Unlimited removes the daily cap and the wait between checks. You can see what a check gives you before any of that matters, which is the comparison worth making on your own work rather than on a feature list. See the plans .

Paste text and see which passages are already online, word for word, and on which pages.

Worth knowing

How a plagiarism checker works

It reads the page, not a guess

Distinctive phrases from your text go to a search engine, and every page that comes back is fetched and compared word for word. A plagiarism scanner that never opens the page is guessing.
The score is a count, not an opinion

Matched words over the words you submitted, each word counted once however many sources happen to cover it.
Every match names its source

You get the page each passage was found on, so you can open it and see the wording for yourself.
It searches the open web

That is what a search engine can reach. A university's own archive of past submissions is not on it, and no public checker can see inside one.
A match is not a verdict

A quoted line, a cited passage and a common phrase all match, so what a plagiarism detector gives you is where to look, not a judgement.

Common mistakes

Five mistakes to avoid before you submit

Checking it the hour it is due

Every match worth acting on needs a citation added or a sentence rewritten, and that is work you need time for.
Reading the number and stopping

The percentage is a summary. The sources under it are the part that tells you what to change.
Assuming a citation cancels a match

A quote you have cited still matches, and it should. Check that it is marked as a quote, not that it has vanished.
Rewording until the score drops

Changing words around a borrowed idea leaves the borrowing in place. The citation is the fix.
Expecting it to find AI writing

A model usually produces wording that appears nowhere else, so it passes a plagiarism check. That is a different tool's job.

Getting started

Using the plagiarism checker for essays

Paste your work. Or upload the document, and the counter under the box says how much of it will be checked.
Read the sources, not the score. Each match opens the page it was found on, so you can see whether it is a quote, a citation or something to rewrite.
Fix it, then check again. Add the citation or rewrite the passage, and run it once more to see the match gone.

Straight answers

Questions people ask about plagiarism checkers

How do I check my essay for plagiarism?

Paste it into the box above and read the result. Distinctive phrases from your essay are searched for, the pages that come back are fetched, and anything that genuinely overlaps is shown to you with the source beside it. You check plagiarism online here with nothing to install and no account needed for your first check, so the whole answer takes about as long as the search does.

Are plagiarism checkers accurate?

This one reports only what it could verify. A candidate page is fetched and compared against your words before it counts, so the passages you are shown really are on the page it names, and the score is the arithmetic over them rather than an estimate. Where any checker is limited is COVERAGE: it can only find what it can reach, so a match is solid evidence and a clean result means nothing was found on the open web, which is a narrower claim than "original".

Can a plagiarism checker detect ChatGPT?

No, and that is not a fault in the checker. A language model usually writes wording that exists nowhere else, so there is nothing for a plagiarism check to match against and the text comes back clean. They answer two different questions: this one asks whether your words appear somewhere already, and an AI checker asks how the writing reads. Check for AI writing if that is the question you have.

Is there a free plagiarism checker?

This one runs free, with a daily allowance. Signing in raises it, and Unlimited removes the daily cap and the wait between checks. You can see what a check gives you before any of that matters, which is the comparison worth making on your own work rather than on a feature list. See the plans.

Paste your work in the box above and see what comes back.

Plagiarism Checker

What you get

Plagiarism Checker, done right

A real check

Your text is read by the engine, every time. A few seconds, no queue, no card.
Private

Sign in and your checks are saved until you delete them. Never sold, never used for training.
Free to start

Run it free, 5 times a day. The first is instant; the rest are spaced a few minutes apart. Unlimited removes the wait.
All in one place

Clever Checker is a whole writing toolkit. See every tool.

How it works

Three steps

Paste your textType or paste it into the box above. Nothing is stored until you run it.
Run the plagiarism checkerOne click. It takes a few seconds, and needs no account.
Read and reuseCopy the result, run another, or move on to the next tool from your result page.

Next step

Rewrite matched passages in your own words Paraphrasing Tool Cite the source instead Citation Generator

FAQ

Straight answers

Is the Plagiarism Checker free?

Yes. You can run it free, up to 5 times a day. The first check is instant and the ones after it are spaced a few minutes apart. The paid trial removes the wait, lifts the limit and unlocks batch checking.

Is my text private?

Yes. Sign in and your check is saved to your account and kept until you delete it; check without an account and your text is deleted within 24 hours. We never sell it or use it to train anything, and you can delete any check, or your whole account, anytime.

Do I need an account?

No. Every tool works without one. Sign in only if you want to save your work and manage a subscription across devices.