JSON Formatter & Validator
Format, validate, and minify JSON with ease. All processing happens in your browser—no data is sent to our servers.
How to Use the JSON Formatter
- Paste your JSON into the input field on the left
- Click "Format" to beautify it with proper indentation
- Click "Minify" to remove all whitespace
- Click "Validate" to check for syntax errors
- Copy or download the formatted result
What is JSON?
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. It's commonly used for API responses, configuration files, and data storage.
Common Use Cases
- Format API responses for better readability
- Validate JSON configuration files before deployment
- Debug JSON syntax errors with detailed error messages
- Minify JSON to reduce file size for production
- Convert between different indentation styles (2 spaces, 4 spaces, tabs)
Frequently Asked Questions
Is my data safe?
Yes! All JSON processing happens entirely in your browser using JavaScript. No data is sent to our servers or third parties.
What's the maximum file size?
The tool can handle JSON files up to several megabytes. For very large files (>5MB), performance may vary depending on your browser and device.
Can I use this for production code?
Absolutely! The formatter uses the native JavaScript JSON parser, which is the same one used in production applications.