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JSON Formatter & Validator

Format, validate, and beautify JSON data with syntax highlighting.

Features

  • Format and beautify JSON with proper indentation
  • Validate JSON syntax with error highlighting
  • Minify JSON to reduce file size
  • Syntax highlighting for easy reading
  • Support for large JSON files

How to Use

  1. Paste your JSON data into the input area
  2. Click Format to beautify or Minify to compress
  3. View syntax-highlighted output instantly
  4. Copy the result or download as .json file

Frequently Asked Questions

What is JSON formatting?

JSON formatting adds proper indentation and line breaks to make JSON data readable by humans.

Can this tool validate JSON?

Yes, invalid JSON will show an error message with the location of the problem.

Is my data sent to a server?

No, all formatting and validation happens in your browser. Your data stays private.

What is JSON minification?

Minification removes all whitespace and line breaks to make JSON as small as possible for transmission.