JSON Formatter & Validator
Format or minify JSON entirely in your browser. Syntax errors include line and column details so you can fix payloads quickly.
About JSON Formatter & Validator
Pretty-print, minify, and validate JSON with helpful error positions and one-click copy.
This tool runs locally in your browser. It does not upload your input, require an account, or store your data on a server. If a feature needs a network request, the interface asks before sending anything.