Dev Tools
JSON Formatter & Validator
Format, validate and minify JSON data. Pretty-print with 2 or 4 space indentation. Detect syntax errors instantly.
🔒 Runs in your browser — files never leave your device
📋 JSON Input
Indent:
About JSON Formatter
Unreadable minified JSON becomes clean and structured after formatting. Uses browser JSON.parse() for 100% accurate validation.
Frequently Asked Questions
Shortcut?
Press Ctrl+Enter to format instantly.