Text · free local utility
Paste an original and revised version to get a line-by-line difference without sending either text to a server.
Use the options when letter case or spacing should not count as a meaningful change.
The current implementation compares up to 600 lines per side and reports line changes rather than character-level edits.
Always verify the result in the system where you will use it. The page intentionally avoids accounts, uploads, and claims that go beyond the calculation it performs.
Yes. The comparison is computed locally in your browser and the text is not intentionally uploaded.
It collapses repeated whitespace and trims line edges for comparison while still displaying the original lines.
This tool uses a line-oriented diff. A modified line is represented as one removal followed by one addition.