IconVault's JSON to Types converts any JSON document into type definitions for five languages: TypeScript interfaces, Go structs, Python dataclasses, Rust structs and C# classes. Paste API JSON, pick your language, name the root type, and get clean, idiomatic code with inferred types, nested definitions and nullable handling.

It is the fastest way to build typed API clients, DTOs and data models without hand-translating JSON key by key. Nested objects become separate types, arrays become typed collections, and naming follows each language's conventions. Everything runs fully in your browser with nothing uploaded, and it is free to try (heavy repeated use may ask for Pro).