Plagiarism Checker
Instant lexical uniqueness score (lexical diversity + 5-word phrase repetition) with one-click per-sentence Google reverse-search for exact-match exposure across the web.
What powers the Plagiarism Checker
Lexical uniqueness score (0-100) — diversity + repetition combined
Lexical diversity metric (unique-word ratio)
5-word phrase repetition detection (catches templated and AI output)
Per-sentence one-click Google reverse-search in new tab
Color-coded score (emerald / amber / rose) for fast verdict
your text never leaves the page
No length cap, no signup, no watermark
Why the Plagiarism Checker is different
Browser-native
The Plagiarism Checker runs entirely in your browser. Input is processed locally — never uploaded, never logged, never cached anywhere outside your device.
No artificial limits
No daily quotas, no character ceilings, no "upgrade for more" walls. Every feature is the complete feature — the same on the first use as the thousandth.
Production-grade quality
Built to the same engineering bar as paid SaaS tools — accurate algorithms, audited logic, responsive design and accessibility-tested interactions.
Common use contexts
- Bloggers and writers checking originality before publishing
- Students self-checking essays before submission
- Editors auditing freelance submissions
- SEO content reviewers spotting templated AI output
Private and secure
Zero upload
All processing happens in your browser. Input is never transmitted, logged or cached.
Works offline
Once the page loads, the tool runs without an internet connection. No network calls happen during use.
No tracking
No accounts, no cookies for tool state. Only aggregate analytics count visits at the page level.