JSON Formatter
Format, validate, and beautify JSON data with syntax highlighting
Read the full guideClean up messy JSON data instantly. Our JSON Formatter turns cramped, unreadable code into a perfectly indented, syntax-highlighted structure, making debugging and data analysis a breeze for developers.
A JSON Formatter is a specialized tool used to take 'minified' or poorly structured JSON (JavaScript Object Notation) and convert it into a 'pretty-printed' format. It adds line breaks and indentation, and highlights syntax to help developers identify data hierarchies and find errors quickly.
Debugging API Responses
When an API returns a single-line JSON string, use this tool to visualize the object structure and find specific keys.
Validating Data Integrity
Ensure your JSON follows the correct specification. Our tool will point out missing commas, quotes, or brackets.
Configuration Cleanup
Format .json config files for better readability before committing them to version control like Git.
Our tool parses the input string using standard JSON logic. If the data is valid, it re-strings the object with your chosen indentation (2 spaces, 4 spaces, or tabs). The process happens locally in your browser, ensuring your data never leaves your device.
| Feature | Formatted (Beautified) | Minified |
| Readability | High (Human readable) | Low (Machine readable) |
| File Size | Larger (Includes whitespace) | Smaller (Compressed) |
| Use Case | Development & Debugging | Production Performance |
Works on all modern browsers (Chrome, Firefox, Safari, Edge). It handles large JSON files efficiently using client-side processing.