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Diff Checker

Compare two texts and highlight every change.

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Runs locally in your browser. Your files are never uploaded.

About this tool

Paste two versions of a text or code and see added, removed and changed lines side by side, with word-level highlighting inside changed lines.

How to use it

  1. Paste the original and the changed text.
  2. Choose side-by-side or unified view.
  3. Review the highlighted differences.
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