Free JSON Formatter in Your Browser
Beautify or minify JSON locally. Data is not sent to a server. Traitement 100 % dans votre navigateur. Confidentialité totale, aucun envoi — les fichiers ne quittent pas cet appareil.
JSON formatter pretty-prints or minifies JSON in this tab. Invalid JSON shows an error instead of a broken result.
Do not paste secrets you would not want on screen. The text is not uploaded, but it is visible in this browser.
Questions
Does formatting change the data?
Pretty print and minify change whitespace only. Keys and values stay the same.
Is the JSON sent to a server?
No. Parsing runs locally.