JSON Formatter
Format, validate, and minify JSON instantly.
Hint:
Invalid JSON:
Valid JSON
Result
Free JSON Formatter & Validator
JSON Formatter is a free browser-based tool that formats, validates, and minifies JSON data. Paste messy or minified JSON and get clean, readable output instantly.
Features
- Format: Pretty-print JSON with 2-space indentation.
- Minify: Compress JSON by removing all whitespace.
- Validate: Check if your JSON is valid with error position info.
- Keyboard shortcut: Press Ctrl+Enter to format quickly.
Private and secure
Your data never leaves your browser. All formatting and validation is done locally using JavaScript — no data is sent to any server.