What Text Diff Compare helps you do
Compare two text versions with a Split or Unified viewer. Live Myers alignment highlights removals in red and additions in green, with dual line numbers, synced scroll in Split view, and word-level token marks inside changed lines.
Diffing runs entirely in your browser. Neither side of the comparison is uploaded.
How to use Text Diff Compare
- Paste original text on the left and revised text on the right — the comparison updates as you type.
- Use Split (side-by-side) or Unified view, optionally hide unchanged lines, then copy a patch or either side.
When to use it
- See what changed between two config exports before deploying.
- Review copy edits from a collaborator without track changes.
- Compare API response samples when debugging field-level differences.
What to know before you start
- Each side is capped for responsiveness; split very large files before comparing.
- On narrow screens the viewer switches to Unified automatically for readability.
Frequently Asked Questions
Line endings are normalized for comparison so CRLF and LF edits show as content changes, not a whole-file rewrite.
Each side is capped for responsiveness. Split very large logs or configs before comparing if the tool warns about length.