About This Tool
100% private, client-side JSON formatter. Format minified JSON payloads, validate syntax, and inspect nested tree objects without sending data to a server.
1 How to Use Step-by-Step
1. Paste raw JSON into the editor.
2. Click Format, Minify, or Validate.
3. View character counts and copy clean code.
Practical Examples
Input: {"name":"ADX","active":true}
Output: Formatted multi-line JSON with syntax color highlighting.
Common Use Cases
• Debugging REST API responses
• Formatting configuration files
• Validating data payloads before sending
Common Pitfalls & Mistakes
• Trailing commas before closing braces (invalid JSON standard)
Frequently Asked Questions
Is my JSON secure?
Yes, processing happens 100% in your browser using native JavaScript JSON.parse.