JSON to Go Struct Converter

Paste JSON and generate Go structs with optional omitempty, pointer nulls, bson, and mapstructure tags.

Paste JSON and generate typed Go structs with json tags — nested objects, arrays, and nulls handled in-browser.

JSON input Root struct name Field naming omitempty on all fields Null → pointer types Extra tags

Go output

Numbers are inferred as int when integral, otherwise float64. Empty arrays default to []interface{}. Review generated types for production use.

Why Convert JSON to Go?

When integrating APIs or MongoDB documents, scaffolding structs by hand is slow and error-prone. A converter gets you a typed starting point — then you tighten types, rename fields, and add validation.

Tips

Prefer concrete types over interface{} once the schema stabilizes.
Use pointers when a field is optional or must distinguish missing vs zero.
Align json / bson names with your wire format (snake_case is common for MongoDB).