Accueil
Tom Utilities

Formateur JSON

Outils JSON

Embellit et valide le JSON avec indentation configurable, mise en évidence des erreurs et copie en un clic.

Entrée

Résultat

Comment utiliser

How to format JSON

Paste or type JSON on the left, then press Format. Everything is processed locally in your browser.

  1. Paste your JSON into the input editor.
  2. Choose the indentation you prefer.
  3. Press Format and copy the result.

Questions fréquentes

Is my JSON uploaded to a server?

No. Formatting runs entirely in your browser with JavaScript, so your data never leaves your device.

Can it detect syntax errors?

Yes. If the JSON is invalid the tool shows the error and the position where parsing failed.