JSON Formatter & Validator
Pretty-print, minify and validate JSON.
Output
About the JSON Formatter & Validator
Format, validate and minify JSON instantly in your browser. Paste messy JSON to pretty-print it with proper indentation, or minify it for production — with clear error messages when the syntax is invalid.
How to use it
- 1Paste or type your JSON.
- 2Choose format (pretty-print) or minify.
- 3Copy the cleaned-up result, or read the error if the JSON is invalid.
Frequently asked questions
- Is my JSON sent anywhere?
- No. Parsing, validating and formatting all happen locally in your browser.
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