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1Input JSON
2Go Struct Code
Ready All processing done locally

Online JSON to Go Struct Code Generator

Paste JSON on the left to instantly generate Go Struct code with json:"..." tags. Supports recursive generation of sub-structs for nested objects and maps arrays to Go slices. Generated code works directly with the encoding/json standard library for serialization and deserialization. All processing is done locally in the browser; data is never uploaded to servers.

Features

  • Automatically generates Go Structs with json:"fieldName" tags
  • Recursively generates corresponding sub-structs for nested objects
  • Maps JSON arrays to Go slices ([]string, []SubStruct, etc.)
  • Smart inference of Go basic types (int, float64, bool, string)
  • Customizable root struct name

Applicable Scenarios

  • Go Backend Dev: Quickly generate structs for HTTP API JSON responses
  • 3rd-Party API Integration: Convert API doc example JSON to Go data models
  • Gin/Fiber Frameworks: Generate request/response structs for use with ShouldBindJSON
  • Config Files: Convert JSON configuration file structures to Go Config structs

Frequently Asked Questions

Yes. The generated struct fields include json:"fieldName" tags and can be used directly with the Go standard library's encoding/json package for JSON serialization and deserialization. The field names correspond to the exact original JSON fields.

JSON arrays map to Go slice types. Arrays of basic types correspond to []string, []int, []float64, etc.; arrays of objects will generate corresponding sub-structs and map to []SubStruct. Empty arrays map to []interface.

No. All JSON parsing and Go code generation happen locally in your browser. Data is never sent to any server, and it works completely offline.