JSON Formatter & Validator
Format, minify and validate JSON instantly — free, right in your browser.
Debugging an API response or config file full of unformatted JSON is painful. Lilu Baba's JSON Formatter instantly pretty-prints, minifies, or validates any JSON you paste in, with clear error messages if something's wrong.
FAQ
JSON Formatter — frequently asked questions
The Validate and Format buttons will show an error message describing what's wrong (e.g. a missing comma or bracket) instead of producing output.
No — formatting and validation happen entirely in your browser using JavaScript's built-in JSON parser. Nothing is sent to our servers.