Go Struct to JSON Schema Generator
Convert Go structs into JSON Schema and then open the Mock Generator to create matching sample payloads without leaving the browser.
Need JSON to Go?
Convert JSON data to Go code
Go code Input
JSON Schema Output
Paste your Go structs to produce JSON Schema instantly.
Supports struct tags, slices, maps, embedded structs, and pointer fields.
Frequently Asked Questions
What Go syntax is supported?
The parser reads type declarations for structs, including exported/unexported fields, slices, arrays, maps, pointers, embedded structs, and tags such as `json:"name,omitempty"`. Fields tagged with `json:"-"` are skipped automatically.
How are Go types mapped to JSON Schema?
Primitive types (string, bool, int/uint sizes, floats, time.Time, etc.) are mapped directly to JSON Schema primitives. Slices and arrays become schema arrays, maps become objects with additionalProperties, and pointer types are treated as optional fields.
Does it run locally?
Yes. Conversion happens entirely inside your browser. Paste private structs or DTOs without leaving your machine. The tool infers schema without calling any backend services.
How do I generate mock JSON?
After you generate the schema, click "Generate Mock Data" to open the Mock Generator with the schema preloaded. Configure locales, array counts, and optional fields to create sample payloads instantly.