Free online JSON to Go struct code generator. Convert JSON data to Go struct code with automatic type inference, nested object support, and JSON tags. Pure frontend, no data upload.
It supports string, int64, float64, bool, []byte (base64), time.Time (ISO dates), and interface{} (any). For numeric types, five precision options are available: int, int32, int64, float32, float64. Null values are mapped to pointer types or interface{}.
Yes. The generated code includes standard json tags and can be copied directly into your Go project. It is recommended to run go vet and gofmt for formatting verification. For production, review field types against your actual data.
Yes. You can choose snake_case, camelCase, or keep the original JSON field name as the tag. The tool also supports the omitempty option to skip empty fields in JSON output.
Nested objects automatically generate sub-structs, and arrays generate slice types ([]T). If array elements are objects, sub-structs are generated recursively. Each sub-struct gets its own independent type definition.
Absolutely. This tool runs 100% in your browser. Your JSON data is processed locally in memory and is never uploaded to any server. The data is cleared immediately after processing.
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