JSON Schema Generator API — Generate JSON Schema from Sample Data
Auto-generate JSON Schema (draft-07) from sample JSON data. Perfect for API documentation, validation, and data modeling. Free API.
What is JSON Schema Generation?
JSON Schema generation analyzes sample JSON data and produces a JSON Schema (draft-07) that describes the data structure, types, required fields, and constraints. The generated schema includes property types (string, number, boolean, array, object), format hints (date-time, email, uri), array item types, nested object schemas, and pattern restrictions.
How to Use It
Call GET /api/v1/json-schema?input=%7B%22name%22:%22test%22,%22age%22:30%7D. Returns { schema: object, property_count: number, required: string[] }.
Try it live
Test this endpoint in the interactive console
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Frequently Asked Questions
What JSON Schema draft version is generated?
Draft-07 (JSON Schema draft-handrews-json-schema-02).