JSON Formatter

Format, validate, and beautify JSON data with error detection

Input JSON

Formatted JSON

Free Online JSON Formatter & Validator

Transform messy JSON data into beautifully formatted, readable code with our free online JSON formatter. Perfect for developers, API testing, and data validation. No registration required - format JSON instantly in your browser.

Key Features:

  • • Format & beautify JSON with proper indentation
  • • Validate JSON syntax with detailed error messages
  • • Minify JSON to reduce file size
  • • Copy formatted JSON to clipboard
  • • Download formatted JSON as file

Perfect For:

  • • API response formatting
  • • Configuration file validation
  • • Database export formatting
  • • Code debugging and review
  • • Data structure visualization

How to Use JSON Formatter

1

Paste JSON Data: Copy your unformatted JSON data into the input area on the left side.

2

Choose Action: Click “Format JSON” to beautify or “Minify JSON” to compress your data.

3

Get Results: View the formatted JSON in the output area. Copy or download as needed.

4

Error Detection: If your JSON is invalid, detailed error messages will help you fix issues.

Why Use Our JSON Formatter?

🔒 Privacy & Security

All processing happens in your browser. Your JSON data never leaves your device, ensuring complete privacy and security.

⚡ Lightning Fast

Instant formatting and validation with real-time error detection. No waiting, no delays - just immediate results.

💯 100% Free

No registration, no limits, no hidden costs. Format unlimited JSON data completely free forever.

📱 Works Everywhere

Browser-based tool that works on desktop, tablet, and mobile. Access from any device, anytime.