JSON Formatter & Validator - Free Local Tool

Free online JSON formatter and validator. Beautify, minify, and validate JSON data. 100% client-side processing - your data never leaves your browser.

100% Client-Side — Your JSON never leaves the browser

Input

0 characters

Output

Result

How to use JSON Formatter

  1. 1Paste your JSON code into the input field
  2. 2Click 'Format' to beautify with proper indentation
  3. 3Click 'Minify' to remove all whitespace
  4. 4Use 'Copy' to copy the result to clipboard
  5. 5Download the formatted JSON file if needed

Privacy Guarantee

This tool processes all data locally in your browser. Your JSON data is never sent to any server, ensuring complete privacy and security.

🔒 Processed locally in your browser.