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JSON to Go Struct

Generate Go struct definitions from JSON data.

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Generate Go struct definitions from JSON data.

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Tool guide

JSON to Go Struct Online

Convert sample JSON into Go struct definitions with json tags. The tool is designed for quick API modeling and browser-first developer workflows.

Steps

How it works

  • Paste or upload JSON.
  • Choose a root struct name.
  • Generate Go structs with PascalCase fields and json tags.
  • Copy or download the .go output.
Highlights

Key features

  • Supports nested objects and arrays.
  • Creates Go field names from JSON keys.
  • Adds json tags for original property names.
  • Keeps output editable for cleanup.
Use cases

Common uses

  • Create starter structs for API responses.
  • Model configuration files.
  • Speed up Go development from sample payloads.
Notes

Limitations to know

  • Types are inferred from sample values.
  • Nulls become interface{}.
  • Mixed arrays and optional fields may need manual adjustment.
FAQ

Frequently asked questions

3 answers

Will the generated struct compile immediately?

Common object payloads should be close, but review names, optional fields, and mixed data before using it in production.

Does it preserve JSON tags?

Yes. Each generated field includes a json tag using the original JSON key.

Can it handle arrays?

Yes. Arrays are converted using the first item as the inferred item type.