Writer & Dev
Text Diff
Paste two texts into the two panels and see additions in green, deletions in red, and unchanged content in gray.
Runs in your browser — your text is never uploaded or stored.
Diff
- The quick brown fox + The quick red fox jumps over - the lazy dog+ the lazy cat
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FAQ
Does it diff by line or by word?
By line, which is the most useful view for most content.
Is my text sent to a server?
No — the diff algorithm runs entirely in your browser.
How large can the inputs be?
Tens of thousands of lines are fine; extremely large files may be slow.
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