JSON Formatter & Validator
Format, validate, and analyze JSON data with syntax highlighting and tree view
How to Use This Tool
- Paste your JSON code into the input textarea
- Click "Format" to beautify with proper indentation and highlighting
- Click "Validate" to check if your JSON is valid
- Click "Minify" to compress into a single line (useful for APIs)
- Enable "Tree View" to see your JSON structure as an expandable tree
- Use "Copy Output" to copy the formatted JSON
- Click "Download as JSON" to save as a .json file
Why You Need This Tool
JSON is everywhere in modern web development. Whether you're working with APIs, configuration files, or data exchange, you need to:
- Validate: Catch syntax errors that break your applications
- Format: Make JSON readable during development and debugging
- Minify: Reduce file size for production and API responses
- Inspect: Understand complex nested structures with tree view
- Debug: Find exactly which line contains an error
Common Use Cases
- REST API response testing and debugging
- Configuration file validation (package.json, config.json, etc.)
- Data import/export validation
- GraphQL query response inspection
- MongoDB document formatting
- Firebase data structure validation
Features Explained
Syntax Highlighting: Different JSON elements are color-coded for easy reading:
- Keys (property names)
- Strings (text values)
- Numbers (numeric values)
- Booleans (true/false)
- null values