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JSON Formatter

Format, validate, and beautify JSON

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About JSON Formatter

This free JSON formatter helps you format, validate, and beautify JSON data instantly. Whether you're debugging an API response, cleaning up configuration files, or just need to make JSON readable, this tool handles it all.

Features

  • Real-time JSON validation with error highlighting
  • Customizable indentation (2 spaces, 4 spaces, or tabs)
  • Minification to reduce file size
  • Tree view for navigating complex structures
  • One-click copy and download
  • Statistics: key count, nesting depth, file size

Common Use Cases

  • Formatting API responses for debugging
  • Cleaning up package.json or config files
  • Validating JSON before sending to an API
  • Minifying JSON for production use
  • Exploring complex JSON data structures

Privacy

Your data never leaves your browser. All processing happens client-side, ensuring complete privacy. We don't store, log, or transmit any of your JSON data.