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JSON-validator

JSON valideren

Werkt in je browser · Geen uploads

De tool zelf en de uitleg op deze pagina zijn voorlopig in het Engels. Hij werkt hetzelfde: alles gebeurt in je browser.

  • Niets verlaat je apparaat
  • Geen groottelimieten van een server
  • Geen aanmelding, geen watermerk
  • Gratis

How to validate JSON

  1. Paste your JSON.
  2. Press Validate JSON.
  3. If there is an error, its line and column are shown and the problem is selected in the text box. Fix it and validate again.

Common JSON errors

  • A comma after the last item in an object or array.
  • Single quotes instead of double quotes around strings and keys.
  • Keys without quotes.
  • Comments, which standard JSON does not allow.
  • Special values such as NaN, Infinity or undefined.

Is my JSON sent anywhere?

No. Validation happens in your browser.

Veelgestelde vragen

Which JSON standard is used?

Standard JSON as defined in RFC 8259, the same rules web browsers use.

Is my JSON uploaded?

No. Everything stays in your browser.