JSON to Go

Convert JSON to Go structs online with json tags. Nested structs, pointers for nullable fields, package name option.

Generated code will appear here...

Everything runs locally in your browser. Your JSON is never uploaded or stored.

What is a JSON to Go converter?

A JSON to Go converter generates Go struct definitions from a JSON sample, including correct json tags, nested structs, and slice types. It is the fastest way to write typed models for REST APIs and webhooks — and it runs entirely in your browser.

How to generate Go structs from JSON

Paste a JSON object or array, adjust the package name if needed, then copy the generated structs into your project. The default package is main.

Type mapping

int is used for whole numbers and float64 for decimals. Nested objects become their own structs named after their key, arrays become slices, and empty or mixed arrays fall back to []interface{}.

Pointers, omitempty, and naming

Fields that are null or missing from some array elements become pointer types with ,omitempty in the tag. Type names are PascalCase versions of the keys with unique suffixes on collisions, and you can rename the root at any time.

Frequently Asked Questions

How do I convert JSON to a Go struct?+
Paste your JSON and the tool instantly generates Go structs with json:"..." tags for every field. Nested objects become separate structs, and you can copy the whole file with one click.
Which Go types are generated?+
Strings map to string, whole numbers to int, decimals to float64, booleans to bool, arrays to slices, and unknown or mixed shapes to interface{}. Fields that can be null or missing become pointers such as *string so encoding/json handles them correctly.
Why do fields have json tags?+
Every field keeps its original JSON key in a struct tag so marshalling works even when the Go field name is exported in PascalCase. Properties missing in some array elements also get ,omitempty.
Is my data uploaded?+
No. The conversion runs entirely in your browser; your JSON and the generated code never leave your device.

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JSON to Go — free online json to go, json to go struct, golang json to struct, json to golang converter, go struct generator, json to struct online, golang struct from json, json to go structs free, convert json to go code, json marshal go struct. No signup required. Works in your browser.