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omnikit

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Text Diff

Spot what changed between two versions of text, with added and removed lines highlighted for you.

Processed on your device
  • Side-by-side inputs
  • Added and removed lines
  • Changed-line counts
Works in your browser · Your files stay hereFree · No account · No daily task limit
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How to use Text Diff

  1. Paste the original text on the left.
  2. Paste the changed text on the right.
  3. Added lines show green, removed lines show red.

Privacy

This tool runs entirely in your browser. Your file is processed on your device and is not uploaded to a server. You do not have to take that on trust — the monitor directly beneath the tool reads your browser’s own record of every request this tab made while your file was open.

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Replace a word everywhere at once, or use a pattern to make bigger text edits without doing them by hand.

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