JSON to Go Struct Generator
Generate Go structs with proper json tags from a JSON sample, which saves a lot of tedious typing when you unmarshal an API response. This tool parses your JSON, infers a Go type for each value, and emits exported structs for nested objects using clean PascalCase field names while keeping the original key in a json tag. Arrays become slices typed from their items, objects become named nested structs, numbers become int or float64 based on the value, and unknown or null values fall back to interface. Paste a representative JSON object, set the root type name, click generate, and copy the structs straight into your package. All parsing and code generation happen locally in your browser, so the sample payload you paste is never uploaded or stored on any server.
How to use JSON to Go Struct
- Paste a JSON sample.
- Click convert to generate Go structs.
- Copy the structs into your Go file.
Frequently asked questions
What does the generated struct include?
It produces Go structs with exported field names and json struct tags that map back to the original JSON keys.
How are nested objects handled?
Nested objects become nested struct types, and arrays become slices of the inferred element type.
Why does it add json tags?
The json tags let Go marshal and unmarshal to the exact JSON key names even though Go field names are capitalized and reformatted.
What is JSON to Go Struct?
Generate Go structs with proper json tags from a JSON sample, which saves a lot of tedious typing when you unmarshal an API response. This tool parses your JSON, infers a Go type for each value, and emits exported structs for nested objects using clean PascalCase field names while keeping the original key in a json tag.
Is JSON to Go Struct free to use?
Yes. JSON to Go Struct is completely free, with no sign-up and no usage limits.
Does JSON to Go Struct work in a web browser?
Yes. JSON to Go Struct runs in any modern web browser. There is nothing to download or install.
Is my data private with JSON to Go Struct?
Yes. JSON to Go Struct runs entirely on your device in your browser, so nothing you enter is uploaded to a server.
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