JSON to Go Struct Converter
Generate Go struct definitions from JSON data. Handles nested objects, arrays, null values (pointers), proper PascalCase naming, and json struct tags. Everything runs in your browser — your data stays private.
About JSON to Go Struct Conversion
Go's static type system requires explicit struct definitions when working with JSON data. Manually writing these structs for complex API responses or configuration files is tedious and error-prone. This tool automates the process, generating clean, idiomatic Go structs from any JSON input.
The converter inspects every value in your JSON and determines the correct Go type. Nested objects become separate named structs. Arrays are analyzed to determine element types, including when elements have varying shapes. Null values are represented using Go pointers, which correctly model the difference between a zero value and an absent value during JSON unmarshaling.
Features
- Generates idiomatic Go structs with proper PascalCase field names
- Adds
json:"..."struct tags on every field - Handles deeply nested objects with separate named struct types
- Detects array element types (primitives, objects, mixed uses
interface{}) - Uses Go pointers (
*string,*int64) for nullable JSON fields - Smart number detection: integers use
int64, decimals usefloat64 - Optional
omitemptyin json tags for flexible marshaling - Toggle between inline anonymous structs and separate named types
- Syntax-highlighted Go output with color-coded keywords, types, and tags
- 100% client-side — your data never leaves your browser