Why does valid-looking JSON fail?
Common causes include trailing commas, single quotes, unescaped line breaks, and missing double quotes.
Validez du JSON, localisez les erreurs de syntaxe et gardez vos données dans le navigateur.
The validator uses the browser JSON parser and reports line and column details when available. Fix the first error and validate again; this is usually the fastest way to recover a valid document.
Common causes include trailing commas, single quotes, unescaped line breaks, and missing double quotes.
No. Validation only reads the input and reports the result.