JSON to Go Struct Converter

Generate tagged Go structs from sample JSON when you want reusable transport models for clients, services, and encoding/json pipelines.

How to use

  1. Paste a representative JSON payload that mirrors the API response or event body your Go code must decode.
  2. Review the generated structs, exported field names, and `json` tags for nested objects, slices, and scalar types.
  3. Copy the structs into your service or client package and refine naming, package placement, or custom unmarshal logic as needed.

Benefits

  • Produces Go structs with tags that are ready for encoding/json decode and encode workflows.
  • Cuts down on repetitive manual tag maintenance across nested payloads.
  • Helps backend teams move from map-based decoding to explicit transport models quickly.

Best use cases

  • Go API clients that need transport structs for third-party JSON responses.
  • Microservices that decode queue events, webhooks, or REST payloads with encoding/json.
  • Teams scaffolding DTO packages before mapping into domain-specific models.

Go struct tips

  • Keep the sample payload close to real traffic so slice element types and numeric fields are inferred accurately.
  • Review acronym capitalization and exported field names before checking generated structs into a shared package.
  • Use the generated structs as transport models and map them into richer domain types where business logic demands it.

Implementation tips

  • Review acronym capitalization for idiomatic Go names.
  • Confirm numeric types for large identifiers or decimals.
  • Place generated structs in dedicated model packages.

Sample JSON

{
  "id": 101,
  "name": "Ada Lovelace",
  "active": true,
  "roles": ["admin", "editor"],
  "profile": {
    "email": "ada@example.com",
    "score": 9.8
  }
}

Sample output

type UserModel struct {
  Id      int      `json:"id"`
  Name    string   `json:"name"`
  Active  bool     `json:"active"`
  Roles   []string `json:"roles"`
}

FAQ

What makes the Go route different from the C# or Swift generators?

The Go route is focused on exported struct fields with `json` tags for encoding/json workflows, which makes it a better fit for Go transport layers than class- or property-oriented outputs.

Does the Go route include JSON tags automatically?

Yes. Generated Go structs include `json` tags so the field names stay aligned with the original payload keys.