Core capabilities
Compare left and right text. See line-by-line changes. Use it for quick local reviews.
Text Diff shows differences between two text inputs so changes are easier to review.
No account or card required. Local-first Mac app.

Compare left and right text.
See line-by-line changes.
Use it for quick local reviews.
Concrete features, inputs, and workflow details for this tool.
Compare left and right text. See line-by-line changes. Use it for quick local reviews.
Works with text.
Paste the original text. Paste the changed text. Review highlighted differences. Copy what you need from the result.
Common uses include config comparison, draft review, snippet changes, and support debugging.
Paste the original text.
Paste the changed text.
Review highlighted differences.
Copy what you need from the result.
It focuses on text blocks pasted into the tool.