Free Diff Checker

A professional-grade Diff Checker to verify changes in your code or text files. Whether you're debugging a JSON response or checking a document revision, our tool provides a clear, color-coded visual comparison.

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How It Works

  1. Paste your "Original" content in the left panel.
  2. Paste your "Modified" content in the right panel.
  3. The tool instantly highlights differences: Green for additions, Red for deletions.
  4. Use the "Language" dropdown to enable syntax highlighting for code.
  5. Toggle between Side-by-Side and Inline views to suit your preference.

Use Cases

  • Developers comparing code versions or config files.
  • Writers checking document revisions.
  • Data analysts finding discrepancies in CSV or JSON datasets.

Frequently Asked Questions

Is my data safe?

Absolutley. All comparisons are performed locally in your browser. Your data is never uploaded to our servers.

What languages are supported?

We support highlighting for text, JSON, JavaScript, TypeScript, Python, SQL, HTML, CSS, and many more.