Processed locally — your file never leaves your device
Text Diff
Compare two blocks of text line by line, entirely in your browser.
How it works
- Paste the original text on the left and the changed text on the right.
- Click Compare.
- Added lines are highlighted in green, removed lines in red.
Frequently asked questions
- Is my text sent anywhere?
- No. The comparison runs entirely on your device.
- What kind of diff is this?
- A line-level diff — it shows which whole lines were added, removed, or left unchanged, not individual word or character changes within a line.
- Can I download the result?
- Yes, as a plain text file with +/- prefixes marking additions and deletions.