Free tool · No account
Free plagiarism checker
Paste your draft, hit scan, and see which parts look like stock phrases or repeated sentences. No login - everything runs in your browser and is never uploaded.
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Text stays on your device only
Instant scan
Duplicates & stock phrases
Originality score
Clear highlights to revise
No login · local only. Your text never leaves this device. The checker flags internal duplicates and common academic stock phrases and highlights them in yellow. It does not search the internet or Turnitin-style databases. Best for drafts up to about 10,000 words. For final submissions, also use your school’s official checker.
Paste your text
0 wordsYellow highlight legend
Flagged parts are always yellow. Stronger yellow = higher risk.
- Strong yellow - near-duplicate sentences
- Medium yellow - stock phrases / high similarity
- Light yellow - generic wording / first occurrence of a repeat
Results
Paste text and click Scan for issues to see highlights and your originality score.
Limits of this free local checker
- What it does: finds repeated sentences inside your draft and common stock academic phrases, then highlights them in yellow
- What it does not do: search Google, journals, or Turnitin-style databases - so it cannot prove text is unique on the web
- Size: works best up to about 10,000 words; very long pastes may feel slower because everything runs on your device
- Privacy: no login and no upload - text stays in this browser tab only