JSON Schema to Go - Convert Schema Definitions to Type-Safe Structs

Step 1

Input JSON Schema

Paste your JSON Schema definition (Draft 4, 6, 7, or 2019-09) that describes your data structure with validation rules.

Step 2

Automatic Type Mapping

The converter automatically maps JSON Schema types to Go types (string, int, float64, bool) and generates nested structs for objects.

Step 3

Validation Tags Included

Generated Go structs include validation tags (min, max, email, regexp) compatible with go-playground/validator for runtime validation.

Frequently Asked Questions

Which JSON Schema versions are supported?

The converter supports JSON Schema Draft 4, 6, 7, and 2019-09. It handles common properties like type, required, properties, enum, format, and validation constraints.

How do validation tags work in Go?

The generated validate tags are compatible with github.com/go-playground/validator/v10. Import the validator package and use it to validate struct instances at runtime.

Can it handle nested objects and arrays?

Yes! The converter automatically generates nested struct definitions for objects and properly handles arrays with typed elements.

What happens with required vs optional fields?

Required fields in the schema become non-pointer types in Go. Optional fields become pointers (*Type) to distinguish between zero values and missing values.