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JSON Formatter
Format, beautify, and validate JSON instantly in your browser. Pretty print minified JSON, detect syntax errors, and view structured output with line and column error details.
jsonformatbeautifyvalidate
Formatting Options
Preview the shared config renderer across simple, choice-based, and multi-select settings.
Features
Real-time Validation
Instantly validates JSON syntax
Custom Formatting
Choose your preferred indentation
File Upload & Download
Work with JSON files directly
Privacy First
All processing happens in your browser
Quick Tips
- •Paste JSON from any source - APIs, config files, databases
- •Use minify to reduce file size for production
- •Upload .json files directly for quick formatting
- •Download formatted JSON for easy sharing
- •All data stays in your browser - nothing is sent to servers
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