Data Tools

Diff Checker

Compare two blocks of text and see the differences line by line. Free and private.

Updates as you type 🔒Private · nothing uploaded

Original

Modified

Diff Output

Compare two versions of text and see exactly what changed. Useful for reviewing edits, comparing code, or tracking document revisions.

All processing happens in your browser. No text is transmitted or stored.

FAQ

Questions

Is my text uploaded to a server?+

No. All comparison happens in your browser. Nothing leaves your computer.

How does the diff output work?+

Lines prefixed with - were removed, lines prefixed with + were added, and lines with a space are unchanged.

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