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Diff Checker

Compare two blocks of text and highlight the differences.

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About Diff Checker

The Diff Checker on Zynocode Labs compares two blocks of text side by side and highlights every addition, deletion, and modification. Used by developers, writers, and analysts to quickly spot changes between file versions, documents, or code snippets.

How to Use the Diff Checker

  1. 1Paste the original text in the left panel
  2. 2Paste the revised or updated text in the right panel
  3. 3Click "Compare" to generate the diff
  4. 4Green highlights show additions, red shows deletions, yellow shows modifications

Frequently Asked Questions

Does it diff code or just plain text?

It works on any plain text — code, prose, JSON, CSV, or anything else. Syntax highlighting for common languages is also supported.

Can I do a line-by-line or character-by-character diff?

Yes. Toggle between "Line Diff" and "Character Diff" modes for different levels of granularity.

Is whitespace-only change detection supported?

Yes. You can toggle "Ignore Whitespace" to hide or show whitespace-only differences.