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devtool

Diff Checker

Compare two inputs (text, JSON, or XML) and highlight differences. You can copy the diff, load sample data, or clear the inputs.

About Diff Checker

What is a Diff Checker?

A diff checker is a tool used to compare two pieces of text and highlight the differences between them. It is commonly used by developers to compare code, JSON, XML, configuration files, or any plain text to quickly identify changes.

Features of This Diff Checker

  • Compare plain text, JSON, and XML
  • Line-by-line difference highlighting
  • Clear visual indicators for added, removed, and changed lines
  • Copy diff results with one click
  • Load sample data for quick testing
  • Instant comparison with no server upload
  • Works fully in your browser

Common Use Cases

This diff checker is useful for developers comparing API responses, QA engineers validating output changes, DevOps engineers reviewing configuration updates, and students learning version differences.

Is My Data Secure?

Yes. All comparisons happen locally in your browser. Your input data is never uploaded, stored, or shared with any server.

Diff Checker FAQs

Can I compare JSON and XML?

Yes. You can compare JSON, XML, or any plain text input. Differences are highlighted line by line.

Is this diff checker free?

Yes. This tool is completely free and does not require registration.

Does this tool work offline?

Once loaded, the diff checker runs entirely in your browser and does not require an internet connection.