Tools / Text Diff
Text Diff
Compare two texts line by line — additions and removals highlighted instantly.
How to compare two texts
- Paste the original text on the left and the changed version on the right.
- Press Compare — removed lines show red with −, added lines show green with +.
- Use Swap sides to reverse the comparison direction.
Frequently asked questions
How are the texts compared?
Line by line, using the classic longest-common-subsequence algorithm — the same approach behind git diff. Pure additions, pure deletions and edits of a line are all detected.
Is my text sent to a server?
No. The comparison runs entirely in your browser — contract drafts, logs and private notes never leave your machine.
What do − and + mean?
− marks a line that exists only in the original (removed), + marks a line that exists only in the changed version (added). Unchanged context lines are shown dimmed.