Text Runs in your browser
Diff Checker
Compare two texts side-by-side or unified — line, word, and character-level diff with the Myers algorithm. File input, .patch export, ignore whitespace/case. 100% private.
100% Private Works Offline Instant
Compare two texts side-by-side or unified — line, word, and character-level diff with the Myers algorithm. File input, .patch export, ignore whitespace/case. 100% private. Everything runs locally in your browser — your data never leaves your device.
How to use
- Enter your input in the tool above.
- Adjust any options to your preference.
- Use the Copy or Download buttons to save the result.
- Everything happens locally — your data never leaves your browser.