JSON Schema is a vocabulary that lets you validate and describe the structure of JSON data. It defines what properties are expected, their types, which fields are required and other constraints. Think of it as a blueprint for your JSON.
Using this tool is straightforward:
The generator automatically detects these JSON types:
Yes. The generator recognizes common string formats like email addresses, dates, URIs
and IP addresses. When detected, it adds a format property to help with validation.
The generator inspects the first item in an array to determine the schema for all items.
Empty arrays produce a schema with an empty items object since there is no data
to infer the type from.
Absolutely. The generated schema follows the JSON Schema 2020-12 draft specification. You can use it with any JSON Schema validator like Ajv, Zod or similar libraries to validate your data.
Yes. All processing happens on the server during the request and nothing is stored. Your JSON data is not logged or saved anywhere.