Guide / 01
When to use it
Use it to review which lines changed between two contract drafts, release notes, or configuration files before accepting an update.
DEV / 006
Text Diff
Compare two documents line by line and spot every change.
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Quick guide
- Paste the baseline document on the left and the revised document on the right.
- Read unchanged context normally, removed lines with a minus marker, and added lines with a plus marker.
- Check the surrounding unchanged lines and confirm each reported change in the source document.
Check
Validate the result
Change one word on a single line; the tool should show the old whole line as removed and the new whole line as added.
Limits
Know the limits
Comparison is line based, so it does not highlight individual words inside a changed line. Large reordering can appear as removals and additions rather than moves.
Reference
Input and output example
Use the same units and settings when comparing your result with this example.
- Example input
Original: ship Friday Changed: ship Monday- Result and interpretation
− ship Friday + ship Monday The whole changed line is shown, not just the changed word.
FAQ
Frequently asked
Why is a line shown twice when I only moved it?
The longest-common-subsequence comparison does not track move operations. It represents the old position as a removal and the new position as an addition.
Does my data leave this device?
No. This tool is designed to process its working data in your browser. Advertising may load separately, but your tool input is never sent with it.