Text & Developer Tools

Text Diff Checker

Line-level diff using longest common subsequence.

  • Private when possible
  • No account required

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About this tool

Text Diff Checker highlights added and removed lines so copy revisions are obvious.

How to use

  1. Paste original text.
  2. Paste modified text.
  3. Review +/- lines.
  4. Copy the diff summary.

Features

  • LCS line diff
  • Color cues
  • Copyable summary
  • Private

Common use cases

  • Writing
  • Editing
  • Content prep

Supported formats

Privacy

This tool processes data in your browser. Content is not uploaded to our servers unless a feature explicitly requires a network request.

Frequently asked questions

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