JSON Formatter

JSON formatter & validator

Beautify, validate, and minify JSON. Paste it in, pick your indentation, and copy clean output.

▌ JSON in
▌ Output

Format, validate, or minify

Paste JSON and tap Format to pretty-print it with your chosen indentation, or Minify to strip whitespace for production. If the JSON is invalid, you'll get a clear error message. Nothing is sent to a server.

FAQ

Is my JSON uploaded anywhere?
No. Parsing and formatting happen entirely in your browser — safe for sensitive data.
What does minify do?
It removes all unnecessary whitespace and line breaks, producing the smallest valid JSON for faster transfer.

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