JSON Formatter

Format and beautify JSON data with syntax highlighting

Enter or paste JSON data to format, minify, or validate

What is JSON Formatting?

JSON formatting, also known as pretty-printing, adds whitespace and indentation to JSON data to make it human-readable. This tool helps you format, minify, and validate JSON data entirely in your browser - your data never leaves your device.

How to Use

  1. Paste your JSON data into the input field
  2. Click "Format" to beautify, "Minify" to compress, or "Validate" to check syntax
  3. Copy the result using the "Copy to Clipboard" button

Example

Input (minified):

{"name":"John","age":30,"city":"New York"}

Output (formatted):

{
  "name": "John",
  "age": 30,
  "city": "New York"
}

Features

  • Pretty-print JSON with customizable indentation
  • Minify JSON to reduce file size
  • Validate JSON syntax with clear error messages
  • Preserves Unicode characters correctly
  • 100% client-side processing for privacy

Frequently Asked Questions

What is JSON formatting?

JSON formatting adds whitespace and indentation to JSON data to make it easier to read and understand. It's especially useful when working with API responses or configuration files.

Does this tool validate JSON?

Yes! Click the "Validate" button to check if your JSON is syntactically correct. The formatter will also detect invalid JSON and display parse errors.

Is my data sent to a server?

No, all JSON formatting happens in your browser. Your data never leaves your device, ensuring complete privacy and security.

What's the difference between Format and Minify?

Format adds whitespace and indentation to make JSON readable. Minify removes all unnecessary whitespace to reduce file size - useful for production environments.