Skip to content
Toolwright

Text Diff Checker

Paste two versions of a text or code and see additions and deletions highlighted line by line, word by word or character by character. Side-by-side and inline views, plus a unified patch you can copy. Nothing leaves your browser.

Text Runs in your browser Works offline once loaded

Private by design: your input is processed on this device and never uploaded. Verify it yourself.

How to use Text Diff Checker

  1. 1Paste the original text on the left and the changed text on the right.
  2. 2Choose line, word or character comparison.
  3. 3Switch between side-by-side and inline views, or copy the unified patch.

Find & Replace

Bulk find and replace text with optional regular expressions.