No. Checking your paper on PaperCheck does not send it to Turnitin, DrillBit or any other plagiarism database. A check here does not add your paper to their repositories, so it cannot cause a self-match when your college scans it later.
Written by Adithyan, a student who builds PaperCheck. Last updated 2 November 2026.
In a Turnitin class, the instructor chooses whether submitted papers are stored in a repository. Once a draft is stored there, a later scan of the same paper, or an updated version of it, can match the earlier copy and show a very high similarity score. That is why students ask whether a check can leave a copy behind.
PaperCheck is independent. It is not connected to Turnitin or DrillBit and has no way to submit anything to them.
Your college checks against its own sources: its database, student paper archives and public web pages. Because PaperCheck never sent your text to Turnitin or DrillBit, a check here adds nothing to their databases. You can read more in our privacy policy.
No. We do not publish checked papers or put them on search engines, and your reports open only when you are signed in to your account.
We cannot see how other services are set up. Before using one, ask whether it stores your paper in a repository, because a stored draft can match your final submission.
Yes. It compares your text with public sources: arXiv, Wikipedia, Europe PMC and OpenAlex. Quoted published work without a citation can still be found.
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PaperCheck is not affiliated with Turnitin, GPTZero, papercheck.in or papercheck.ai. Scores from any detector are estimates, not proof.