Formateur JSON5
Formateur JSON5 gratuit. Accepte les JSON avec commentaires, virgules finales et autre syntaxe relâchée, puis produit un JSON strict. Utile pour les fichiers de configuration s'étant éloignés de la spécification.
JSON5 Input
Output
Questions fréquentes
›What is JSON5?
A superset of JSON that allows comments, trailing commas, unquoted keys and a few other conveniences. It's the format of many config files (tsconfig, devcontainer, babel) and drift-prone hand-edited JSON.
›Does it handle single-quoted strings?
This tool handles the most common JSON5 drift — `// comments`, `/* block comments */` and trailing commas. For the full JSON5 spec (unquoted keys, single quotes, hex numbers) paste into a proper JSON5 parser locally.
›What does the output look like?
Strict, spec-compliant JSON — 2-space indented. Safe to feed to any JSON.parse or schema validator.
›Is it free?
Yes — fully free, in-browser, no signup.