Text Diff Viewer

Highlight differences between an original and a changed block of text.

100% Private — runs in your browserNo uploads, no sign-upFree forever

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How It Works

  1. Paste original text
  2. Paste new text
  3. Click Convert
  4. Review the diff

Use Cases

  • Code review
  • Content edits
  • Change tracking

Frequently Asked Questions

How are differences shown?

Lines that differ are listed with their line numbers.

Does the Text Diff Viewer send my code or data to any server?

No. Everything runs locally in your browser. Your code, data, and files remain on your device at all times.

What input size limits apply?

The tool handles most practical input sizes. Very large files may cause browser performance limitations since processing is done client-side.

Can I use this in my development workflow?

Absolutely. The tool is designed for developers and integrates well into local development workflows without needing command-line utilities.

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