Browser-only инструмент

Валидатор JSON Schema

Проверяйте required поля, типы и структуру объекта в browser-only режиме без серверной отправки.

  • Обновлено: 2026-04-30
  • Both JSON data and schema are processed locally in your browser and are not uploaded.

Внимание: это практичный валидатор подмножества, а не полная реализация JSON Schema. Backend-валидация по-прежнему обязательна.

Результат проверки появится здесь.

Приватность и ограничения

Both JSON data and schema are processed locally in your browser and are not uploaded.

  • This first version supports a practical subset: type, required, properties, items, enum, and additionalProperties.
  • It is not a full replacement for production JSON Schema libraries.
  • Do not paste secrets unless you trust the local browser environment.

FAQ

Does this implement every JSON Schema draft feature?

No. It starts with a useful subset and clearly reports unsupported production needs as a limitation.

Is validation server-side?

No. Data and schema are parsed locally in the browser.

Can this replace backend validation?

No. Backend validation remains required for production systems.

What schema features work?

The tool supports type, required, properties, items, enum, and additionalProperties for common checks.

What happens on invalid JSON?

The tool reports a parse error before attempting schema validation.