📋 Text Diff
Put the old text on the left and the new text on the right, click "Compare" and see a line-by-line diff with added, removed and unchanged lines highlighted. Runs locally: no upload, no sign-up.
❓ Frequently asked questions
How do I use this diff tool?
Paste the old version on the left and the new version on the right, one line per item, then click "Compare".
Does it support non-English text?
Yes. Comparison is line-based and works for any language.
Is my text uploaded?
No. All comparison happens in your browser; nothing is sent to any server.
📚 How to use
Changed some copy or code and want to see exactly what moved? Paste both versions and compare.
Steps
- Paste the old version on the left, new on the right.
- Click "Compare".
- Red is removed, green is added, grey is unchanged; the top shows the counts.
About this tool
Two versions of the same file. What changed? Don't read both — let the tool.
Paste the old and new text and it highlights exactly what's different, line by line.
Use it on code, a contract, a draft — anywhere a small change hides in a big block.
Local; your text isn't uploaded.
Privacy: your content stays on your device. (Anonymous analytics only — privacy policy.)
Tip: trim to the section you care about first; a smaller diff is easier to read. Enjoy.