JSON Schema Generator

Generate JSON Schema from sample JSON data

Input JSON
JSON Schema

Related JSON Tools

What is JSON Schema?

JSON Schema is a powerful tool for validating the structure of JSON data. It defines the expected format, required fields, and data types. Used by APIs to ensure data integrity, it acts as a contract between services. Our generator creates schemas from sample data automatically.

Frequently Asked Questions

What is JSON Schema used for?
JSON Schema validates JSON data structure, ensuring required fields exist and data types match. It's essential for API development, configuration files, and data interchange between services.
How does schema generation work?
The analyzer examines each value's type (string, number, boolean, array, object) and recursively builds a schema definition. Nested objects and arrays are automatically detected with proper type constraints.
What schema versions are supported?
We support Draft-04, Draft-06, and Draft-07. Each version adds features like const, contains, and propertyNames. Choose based on your validator's compatibility requirements.