Paste any JSON and get ready-to-use Go structs. Types are inferred recursively: nested objects become their own named structs (from the field name), arrays become []T with an element type inferred from their items, and null values become interface{}. Numbers become int or float64 based on their value; true/false become bool; strings become string. Field names are exported (first letter capitalised) and each field carries a json struct tag with the original key. The root struct name is configurable and defaults to Root.
This turns an API response into idiomatic, tagged Go models in seconds. The whole tool is plain JavaScript running locally in your browser — no build step, no server, no upload — so it is safe for private or proprietary payloads.