JSON Formatter & Validator
Prettify JSON instantly and catch syntax errors before they ship.
How to Use This Tool
- 1
Paste raw or minified JSON into the input field.
- 2
Click Convert to validate and format the payload.
- 3
Copy the prettified output or download it for docs and debugging.
Features
Strict validation with helpful error messages
Consistent two-space indentation
Works offline and keeps data on-device
Common Use Cases
- •
Debug API responses before integrating
- •
Clean configuration files for reviews
- •
Share readable JSON snippets with teams
About This Tool
Format messy JSON, diagnose syntax issues, and share readable output with teammates. The formatter works entirely in your browser, so sensitive data never leaves your device.
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