What is a Go struct?

A Go struct is a composite data type in the Go programming language that groups together variables (called fields) under a single name. Structs are similar to classes in other languages but without inheritance. They're fundamental to organizing data in Go applications, especially when working with JSON APIs, databases, or configuration files. When you receive JSON data from an API, you need to define corresponding Go structs to unmarshal (parse) that data into usable Go objects.

Tool Description

JSON to Go Struct is a free online tool that automatically converts JSON data into properly formatted Go struct definitions. Simply paste your JSON, and the tool instantly generates the corresponding Go code with correct types, field names, and JSON tags. This eliminates the tedious manual work of writing struct definitions and ensures accuracy, especially for complex nested JSON structures.

Features

  • Instantly convert JSON to Go struct definitions
  • Automatic type detection for all JSON data types
  • Generate proper JSON field tags for marshaling/unmarshaling
  • Support for nested objects and arrays
  • Customizable type name for the generated struct
  • Option to flatten nested structs into separate type definitions
  • Option to add omitempty tag to all fields
  • Syntax-highlighted Go code output
  • Handles complex JSON structures automatically

Use Cases

  • Convert API response examples into Go structs for your application
  • Generate struct definitions for JSON configuration files
  • Create data models from JSON database exports
  • Speed up development when integrating with REST APIs
  • Document JSON data structures with Go type definitions
  • Generate boilerplate code for JSON unmarshaling
  • Convert JSON schemas into Go code
  • Prototype Go applications that consume JSON data