Features
- Instant Validation: Check if your JSON is valid in real-time
- Pretty Printing: Format JSON with proper indentation
- Error Detection: Precise error messages with locations
- Copy to Clipboard: Easy one-click copying of formatted JSON
- No Data Storage: Your JSON data stays in your browser
How to Use
- Paste your JSON into the input field
- Click “Validate & Format” to process
- View the formatted result or error message
- Copy the formatted JSON with one click
Common Use Cases
- Debugging API responses
- Formatting configuration files
- Validating data structures
- Cleaning up minified JSON
- Preparing JSON for documentation
Tips for Working with JSON
- Ensure all property names are in double quotes
- Check for matching brackets and braces
- Use appropriate data types (strings, numbers, booleans)
- Validate arrays and nested objects carefully
- Remove trailing commas
Technical Details
- Supports all JSON data types
- Handles nested structures
- Preserves Unicode characters
- Maintains data integrity
- Works offline in your browser
Privacy & Security
- No server-side processing
- No data collection or storage
- Works entirely in your browser
- No external API calls
Keyboard Shortcuts
Ctrl/Cmd + Enter: Validate and FormatCtrl/Cmd + C: Copy formatted JSON
Need Help?
If you encounter any issues or need assistance, check these common problems:
- Missing or extra commas
- Unmatched brackets or braces
- Invalid property names
- Incorrect data types