JSON Formatter & Validator
Paste ugly JSON, get pretty, validated output — instantly.
Drop in any JSON and see syntax-highlighted, formatted output with real-time validation. Errors are pinpointed to the exact line and column with a clear description of what went wrong.
Switch between Formatted, Minified, and Tree View output modes. See stats like key count, nesting depth, and minification savings. Everything runs in your browser — nothing is sent to a server.
Editor
Paste or type JSONCtrl+Enter
Frequently Asked Questions
Common questions about JSON formatting, validation, and this tool.
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