// beautify, minify and validate JSON — entirely in your browser
This free online JSON formatter and validator instantly beautifies, minifies, and validates any JSON. Paste raw JSON to detect syntax errors with clear messages, or click Beautify to pretty-print with proper indentation and syntax highlighting. Works entirely in your browser — no data is sent to any server.
Common uses: Formatting API responses, debugging JSON payloads, validating config files, minifying JSON for production.