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JSON to Go Struct

Convert JSON to idiomatic Go struct definitions with json tags, nested structs, omitempty, and pointer options

JSON to Go Struct

Go structs

Go structs generated

type Root struct {
	Id       int         `json:"id"`
	Name     string      `json:"name"`
	Email    string      `json:"email"`
	Age      int         `json:"age"`
	Active   bool        `json:"active"`
	Score    float64     `json:"score"`
	Tags     []string    `json:"tags"`
	Address  Address     `json:"address"`
	Projects []Projects  `json:"projects"`
	Metadata interface{} `json:"metadata"`
}

type Address struct {
	Street string `json:"street"`
	City   string `json:"city"`
	Zip    string `json:"zip"`
}

type Projects struct {
	Name    string `json:"name"`
	Stars   int    `json:"stars"`
	Private bool   `json:"private"`
}
Need TypeScript interfaces instead?JSON to TypeScript →

Updated . Provided as is. Check the output before you rely on it in production.

How to use JSON to Go Struct

  1. 1

    Paste your JSON data

    Input a JSON object or array in the left panel. The tool instantly parses the structure and infers Go types: strings become string, integers become int, decimals become float64, booleans become bool, and null becomes interface{}.

  2. 2

    Configure struct options

    Set the root struct name (default: Root). Toggle omitempty to add ,omitempty to json tags. Enable pointer types for nested objects. Choose inline structs to embed nested types directly instead of creating separate named structs.

  3. 3

    Review generated Go structs

    The right panel shows idiomatic Go struct definitions with aligned fields and proper json tags. Nested JSON objects become separate named structs. Arrays of objects share a common struct type.

  4. 4

    Copy and use in your project

    Click Copy to copy the generated Go struct definitions. Paste them into your Go source file. The structs are ready to use with encoding/json for marshaling and unmarshaling JSON data.

Questions and answers

What is JSON to Go Struct?
Go decodes JSON into structs whose json tags map each key to a field. This converter infers struct definitions from sample JSON, with exported field names, json tags, nested objects as named or inline structs, int and float64 detection, and optional omitempty and pointer fields.
Does JSON to Go store my data?
No. All conversion happens entirely in your browser. Your JSON data never leaves your device — nothing is sent to any server.
How does JSON to Go handle nested objects?
Nested JSON objects become separate named Go structs. Arrays of objects create a shared struct type. You can also enable inline structs to embed them directly.
What Go types does JSON to Go generate?
Strings map to string, integers to int, decimals to float64, booleans to bool, null to interface{} (or pointer types when enabled), and arrays to slices of the inferred element type.

Use it as an API

JSON to Go Struct is also callable as a free HTTP JSON API at https://aidevhub.io/api/json-to-go/ — GET with query parameters or POST with a JSON body, no authentication, CORS enabled, fair use (abusive traffic is throttled at the edge; there is no per-request quota header). Responses return { ok, tool, result, meta }. 

curl -s -X POST https://aidevhub.io/api/json-to-go/ \
  -H "Content-Type: application/json" \
  -d '{"json":"{\"id\":1,\"name\":\"Alice\"}","root_name":"User"}'

Machine-readable contract: /api/tool/json-to-go.json All API endpoints: /agents/ LLM site index: /llms.txt

For AI agents: how to call this tool

Machine-readable contract, endpoints and examples. Humans can ignore this section.

Best Path For Builders

Dedicated API endpoint

Deterministic outputs, machine-safe contracts, and production-ready examples.

Dedicated API

https://aidevhub.io/api/json-to-go/

OpenAPI: https://aidevhub.io/api/openapi.yaml

GET /api/json-to-go/ GET json-to-go
POST /api/json-to-go/ POST json-to-go