Automatically fixes common JSON formatting issues like missing quotes, trailing commas, and unquoted keys. Also supports Python print output conversion.
Adds quotes around unquoted keys
Removes trailing commas
Fixes single quotes to double quotes
Balances missing brackets and braces
Converts Python None/True/False to JSON equivalents
Handles Python dict/list output format
✅ Format & Validate
Validates JSON syntax and formats it with proper indentation and syntax highlighting.
Real-time validation with detailed error messages
Beautiful syntax highlighting
Line and column error reporting
Copy formatted JSON to clipboard
🔒 Privacy First
All processing happens in your browser. Your JSON data never leaves your device.