Text Difference Checker

Compare two text blocks side by side and highlight additions, deletions, and changes.

1 unchanged · 0 removed · 0 added

 

What this tool does

Comparing two versions of copy catches accidental deletions before publishing — essential for legal text, captions, and client approvals.

Side-by-side diff highlighting shows exactly what changed between drafts.

How to use it

  1. 1

    Paste the original text in the left panel and the revised text on the right.

  2. 2

    Review highlighted differences between the two versions.

  3. 3

    Use the diff to audit caption edits, legal copy, or document revisions — all local.

When to diff text

Diff caption edits before A/B testing social posts. Compare CMS exports after plugin updates.

All comparison runs locally — sensitive drafts never leave your device.

Tips

  • Paste the older version on the left, newer on the right for intuitive reading.
  • Use with readability checker after major rewrites.

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Frequently asked questions

Is my text sent to a server?▼

No. Diff comparison runs entirely in your browser for privacy.

Can I compare long documents?▼

Yes, though very large texts may take a moment to process locally.