JSON Formatter
Format, minify, validate, and transform JSON data with ease. All processing happens in your browser.
No Formatted JSON Yet
Enter your JSON and select an operation to see results here
💡 Hover over buttons to see descriptions
⌨️ Tab to navigate • Enter/Space to activate
How to Use JSON Formatter
Paste JSON
Enter or paste your JSON data into the input area
Choose Operation
Select from format, minify, validate, or transform options
Copy Result
Copy the formatted output to use in your projects
Powerful JSON Operations
Format & Beautify
Make JSON readable with customizable indentation (2 spaces, 4 spaces, or tabs)
Minify
Remove whitespace to reduce file size for production
Validate
Check JSON syntax and get detailed error messages
Sort Keys
Alphabetically sort object keys for consistency
Transform
Convert JSON to CSV, XML, or flatten nested structures
Extract & Analyze
Extract keys, count items, and remove null values
Love This Tool? Help Keep It Free!
You've just saved hours of manual JSON formatting. Over 50,000 developers use this tool every month.
If this tool saved you time today, consider supporting its development ☕
Not ready to support? Share this tool with your team instead! 🙏
💡Pro Tips & Tricks
CSV Conversion: Wrap single objects in square brackets [{...}] before converting to CSV
Large Files: Files over 1MB will show a warning. Consider breaking them into smaller chunks for better performance
Keyboard Shortcut: Use Ctrl+A to select all output, then Ctrl+C to copy quickly
Nested Data: Use the Flatten operation first to convert nested objects into dot notation for easier CSV conversion
Privacy & Security
Your data stays private. All JSON processing happens locally in your browser.
No Server Upload
Data never leaves your device
Instant Processing
Real-time results with no delays
Free Forever
No sign-up or payment required