Plagiarism Self-Check
Paste a draft to find repeated n-grams, estimate quoted text, and get a review prompt in your browser.
Enter some text.
Words: 0 · Repeated phrases: 0 · Quoted text: 0% · Self-check: —
Only checks this draft locally; it does not search the web or prove plagiarism.
A QUICK WALKTHROUGH
How to use this tool
- Paste your draft.
- Choose phrase length and repeat threshold.
- Review flagged phrases and the self-check rating.
Local self-review
Overlapping word n-grams are counted within the draft. Quoted text is estimated from quotation marks and a simple rating combines repetition and quote density.
Privacy and limits
Processing stays in your browser. Input is limited to 100,000 characters and results are guidance for manual review, not a plagiarism verdict.
GOOD TO KNOW
Common questions
Does it search the web?
No. It only checks repeated phrases inside the draft you provide.
Does a warning prove plagiarism?
No. Repetition and quote density are review signals, not proof of copying or authorship.