Is my JSON data uploaded to a server?

No. The conversion runs entirely in your browser with JavaScript. Nothing is sent over the network, which makes the tool safe for sensitive data.

Are json tags generated for encoding/json?

Yes. Every field gets a `json:"..."` tag with the original key, so the generated structs unmarshal your payload as-is with the standard library.

How are mixed-type arrays handled?

Arrays mixing integers and floats become []float64; other mixed arrays fall back to []any so unmarshalling never fails.

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JSON to Go Struct Converter — Free Online Tool

Generate Go structs from JSON instantly in your browser. Free and private: your data never leaves your device.

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Root name

JSON input

Go output

Why convert JSON to Go structs?

Writing structs by hand for a large API payload is tedious and error-prone. Paste your JSON above and get idiomatic Go: PascalCase exported fields, json tags matching the original keys, and one struct per nested object.

How it works

The converter infers the structure of your JSON locally and emits structs parent-first. Integers map to int, decimals to float64, and arrays mixing both are widened to []float64.

Frequently asked questions

Is my JSON data uploaded to a server?: No. The conversion runs entirely in your browser with JavaScript. Nothing is sent over the network, which makes the tool safe for sensitive data.
Are json tags generated for encoding/json?: Yes. Every field gets a `json:"..."` tag with the original key, so the generated structs unmarshal your payload as-is with the standard library.
How are mixed-type arrays handled?: Arrays mixing integers and floats become []float64; other mixed arrays fall back to []any so unmarshalling never fails.