JSON Formatter and Validator

Format, validate, and beautify your JSON data with our free online tool. All processing is done in your browser - your data never leaves your device.

Example JSON Data

Click any example to load it into the editor:

Simple Object

A basic JSON object with different data types

Nested Structure

Complex nested JSON with arrays and objects

API Response

Typical REST API response format

How to Use the JSON Formatter

  1. Paste your JSON data into the editor
  2. Click "Format JSON" to beautify the code
  3. Use "Minify" to compress the JSON
  4. Copy the result to your clipboard

Features

  • Real-time JSON validation
  • Customizable indentation
  • JSON beautification and minification
  • Error highlighting with detailed messages
  • Example JSON data templates
  • Copy to clipboard functionality