🆚 Text Diff Checker
Compare two texts line by line with highlighted differences
✓ Runs entirely in your browser — your data never leaves this device
About This Tool
Compare two texts line by line: lines unique to the old text are struck through in red (removed), lines unique to the new text are highlighted in green (added). Ideal for reviewing code changes, contract versions and translation diffs.
How to Use
- Paste the two versions into the left and right boxes
- Differences are highlighted automatically — no button needed
- Read the colors: green added, red removed
FAQ
Is the diff bidirectional?
Yes. Lines only in A show as removed; lines only in B show as added.
Can it diff large files?
Best for texts up to ~10k lines; use a dedicated diff tool for bigger files.