JSON Formatter & Validator
Format, validate, and beautify JSON instantly. All processing happens in your browser.
Input
Output
Characters: 0 Lines: 0 Size: 0 B Keys: 0
🔒 Privacy First: All processing happens locally in your browser. Your data never leaves your device.
How to Use JSON Formatter
- Paste or type your JSON data into the input field
- Choose your preferred indentation (2 spaces, 4 spaces, or tabs)
- Click 'Format' to beautify your JSON with proper indentation and syntax highlighting
- Use 'Validate' to check for syntax errors and get detailed error messages
- Click 'Minify' to compress your JSON by removing whitespace
- Copy the formatted result using the copy button
Common Use Cases
- **API Development**: Format API responses for debugging and documentation
- **Configuration Files**: Clean up and validate JSON configuration files
- **Data Analysis**: Structure JSON data for easier reading and analysis
- **Code Review**: Beautify JSON before committing to version control
- **Database Management**: Format JSON stored in databases like MongoDB
- **Web Development**: Validate JSON used in AJAX requests and responses
Why Use JSON Formatter?
Instant formatting with customizable indentation options
Real-time syntax validation with detailed error reporting
Syntax highlighting for better readability
Statistics tracking (character count, lines, file size)
Completely free with no usage limits or signup required
100% client-side processing ensures data privacy and security
Tips & Best Practices
- Use 2-space indentation for web APIs and JavaScript projects
- Choose 4-space indentation for better readability in large JSON files
- Always validate JSON before using it in production applications
- Use minification for JSON data sent over networks to reduce bandwidth
- Copy formatted JSON directly to your clipboard for quick workflow
- Load the sample data to test the formatter's features