Text Compare
Paste the original text on the left and the revised text on the right to see exactly what changed. Added lines, removed lines and unchanged context are highlighted with a summary of the counts, so spotting edits in drafts, configs, prompts and legal text takes seconds — and both texts stay on your device.
- Side-by-side views
- Added / removed / unchanged colors
- Change counts at a glance
- Works entirely offline
Overview
Added: 0Removed: 0Unchanged: 0
Compare
Please enter some text first.
Everything runs in your browser — your text is never uploaded.
How to use this tool
- 1Paste the original version in the left box.
- 2Paste the revised version in the right box.
- 3Read the highlighted diff and the added/removed counts.
Examples
Edited paragraph
Left: The meeting is on Tuesday. Right: The meeting is on Thursday.
Result
One removed line, one added line — everything else identical.
Config change
Left: retries: 3 Right: retries: 5
Result
A single modified line shows as removed + added.
Limitations
- The diff is line-based: a change anywhere in a line shows as one removed plus one added line, not a highlighted word.
- Very large inputs are computed with a classic algorithm and may take a moment to compare.
Frequently Asked Questions
How are changes displayed?
Each line is marked as unchanged, added (only on the right) or removed (only on the left), in original order.
Is it word-by-word?
No — comparison happens per line, which keeps results readable and predictable for documents and configs.
Are my texts uploaded?
No. The diff runs in your browser; neither version is sent anywhere.