JSON to Go Struct

About JSON to Go Struct Tool

This free online JSON to Go struct converter generates idiomatic Go struct definitions from any JSON input. It infers Go types (string, int64, float64, bool), generates json struct tags, handles nested objects as separate named structs, and supports arrays of objects. Configure the root struct name, toggle omitempty on json tags, and choose between inline or named nested structs. Essential for Go developers working with JSON APIs, configuration files, and data pipelines.

Why Convert JSON to Go Structs?

Go's type system requires explicit struct definitions for JSON unmarshaling. Writing structs by hand from large or nested JSON payloads is tedious and error-prone — wrong types cause runtime panics. This tool automates the process: paste an API response or config file, get production-ready Go code with correct types and json tags. Saves minutes per struct and eliminates type mismatches.

Key Benefits

• Type inference: Correctly maps JSON types to Go (string, int64, float64, bool, nested structs, slices)
• JSON tags: Generates json struct tags matching the original field names
• Nested structs: Objects within objects become named Go structs or inline structs
• Configurable: Set struct name, toggle omitempty, choose inline vs named nested structs
• PascalCase fields: Converts snake_case and camelCase keys to idiomatic Go PascalCase
• Instant output: No server round-trips — runs entirely in your browser

Common Use Cases

Backend developers convert API responses (REST, GraphQL) into Go structs for client code. DevOps engineers generate structs for JSON config files (Terraform state, Kubernetes manifests). Data engineers create structs for ETL pipelines processing JSON data. Library authors build typed wrappers for third-party JSON APIs.

Privacy and Security

All conversion happens locally in your browser. Your JSON data — including API responses, configuration files, and production payloads — never leaves your device. No cookies, no tracking, no server uploads. Safe for proprietary schemas and confidential API data.