About JSON Formatter
JSON (JavaScript Object Notation) is a lightweight data interchange format that's easy for humans to read and write, and easy for machines to parse and generate. Our JSON Formatter tool helps you work with JSON data efficiently.
Key Features
- Format & Beautify: Automatically indent and format JSON for better readability
- Minify: Remove all whitespace to reduce file size
- Validate: Check for syntax errors with detailed error messages
- Syntax Highlighting: Color-coded keys, values, and data types
- Tree View: Collapsible hierarchical view of your JSON structure
- File Upload: Load JSON files directly from your computer
- Download: Save formatted JSON as a .json file
How to Use
1. Paste your JSON in the input area or upload a .json file
2. Choose your indentation preference (2 spaces, 4 spaces, or tabs)
3. Click "Format JSON" to beautify, "Minify" to compress, or "Validate" to check for errors
4. Use the Tree View toggle for a hierarchical view of your data structure
5. Copy the formatted output or download it as a file
Common Use Cases
- Debugging API responses
- Formatting configuration files
- Validating JSON data structures
- Converting minified JSON to readable format
- Preparing JSON for documentation
- Comparing JSON data side-by-side
JSON Best Practices
- Always use double quotes for strings (not single quotes)
- Keys must be strings enclosed in double quotes
- No trailing commas after the last item in objects or arrays
- Valid data types: strings, numbers, booleans, null, arrays, objects
- Use consistent indentation for better readability