JSON Schema Generator

JSON Schema validates structure, types, and constraints. Writing schemas by hand is slow. A schema generator infers a schema from sample JSON. Paste one or more samples—API responses, configs—and get a JSON Schema. Use it for validation, documentation, or code generation. Use cases: validating API contracts, documenting schemas, generating OpenAPI, onboarding. Paste data, get schema. Client-side only.

Example

Input

{"id":1,"name":"test","active":true}

Output

{"type":"object","properties":{"id":{},"name":{},"active":{}}}

Use cases

  • Validate API contracts
  • Document data structures
  • Generate OpenAPI schemas
  • Create validation rules