MXG LabsDeveloper tools

JSON Formatter

Pretty-print, minify and validate JSON, with the error located for you. Free, no sign-up, and it runs entirely in your browser — nothing you type here is sent anywhere.

Your JSON

Result

Waiting for something to check.

Keys
Depth
Minified size

Parsed with your browser’s own JSON engine, so what passes here is exactly what passes in your code. When it fails, the line and column are the ones the parser reported.