Unified Diff Generator

Generate a standard unified diff (the format used by `diff -u` and `git diff`) between two versions of text.

Your file is processed locally in your browser and is not uploaded to our server.

Original filename

Changed filename

Original

Changed

Your result will appear here.

How to use Unified Diff Generator

1Paste the original and changed text.
2A standard unified diff (the same format produced by `diff -u` or `git diff`) is generated.
3Copy or download it as a .patch file.

Yes — a standard unified diff can be applied with `git apply` or the classic `patch` command.

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