JSON to Go Struct Generator

Convert JSON payloads into Go struct definitions.

JSON Input:

Go Struct Output:

About JSON to Go Struct Generator

The JSON to Go Struct Generator is an essential developer tool for Golang engineers that automatically analyzes JSON payloads and generates clean, idiomatic Go struct definitions. It correctly resolves primitive data types (string, int64, float64, bool), infers nested struct models, handles slices and arrays, accommodates nullable values with pointers or interface{}, and generates canonical struct tags (`json:"key_name"`). Designed for rapid API development and microservice modeling.

Key features

Idiomatic Go Naming: Converts snake_case and camelCase JSON keys into exported PascalCase Go struct field names
Automatic Type Inference: Accurately differentiates integers, floating-point numbers, booleans, strings, and slice types
Nested Struct Extraction: Decomposes deeply nested JSON objects into modular, reusable sub-struct definitions
Private In-Browser Generation: Generates Go source code in browser memory without transmitting API payloads over the network

How to use

Paste JSON Payload: Paste a representative JSON API response or data object into the left editor.
Configure Struct Settings: Specify your root struct name (e.g., UserResponse) and review field tag mappings.
Copy Go Code: Click "Copy" to paste the generated Go struct definitions directly into your .go source file.

FAQ

How are nested JSON objects handled?

The generator creates independent, named Go sub-structs for nested JSON objects, ensuring clean, modular, and readable Go code.

Does it handle null values and empty arrays?

Yes. Nullable properties are typed safely using pointers or interface{} to prevent JSON unmarshaling panics.

Are json struct tags automatically added?

Yes. Every struct field includes the standard `json:"key"` tag matching the exact casing of the original JSON key.

Is my proprietary JSON schema uploaded to any server?

No. All parsing, type inference, and Go code synthesis occur strictly in client-side JavaScript within your browser.

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About JSON to Go Struct Generator

Key features

Idiomatic Go Naming: Converts snake_case and camelCase JSON keys into exported PascalCase Go struct field names

Automatic Type Inference: Accurately differentiates integers, floating-point numbers, booleans, strings, and slice types

Nested Struct Extraction: Decomposes deeply nested JSON objects into modular, reusable sub-struct definitions

Private In-Browser Generation: Generates Go source code in browser memory without transmitting API payloads over the network