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Turn JSON into TypeScript, Go, or Zod

Paste a JSON sample and get typed code instantly — TypeScript interfaces, Go structs, or a Zod schema — all generated in your browser. No sign-up, nothing uploaded.

TypeScript, Go & Zod

Interfaces, structs with json tags, or a runtime Zod schema — from one JSON sample.

Accurate inference

Nested objects, arrays, and scalar types are inferred from your data automatically.

A page per language

Each target has its own page — switch languages on the fly right in the tool.

Private & client-side

Your JSON never leaves the browser. No server round trip, ever.

Choose a language

JSON to TypeScript interfacesJSON to Go structsJSON to a Zod schema

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Frequently asked questions

What can I generate from JSON?
TypeScript interfaces, Go structs with json tags, and Zod validation schemas. Paste a JSON sample, pick a target language, and the typed code appears instantly — each language also has its own dedicated page.
How accurate are the generated types?
Types are inferred from your whole JSON sample: nested objects become their own named types, arrays are typed by their elements, and primitives map to the right scalar. The richer your sample, the more precise the output.
Is my JSON uploaded anywhere?
No. Parsing and generation run entirely in your browser, so your JSON — including API responses — never leaves your device. It's free with no sign-up; a single unobtrusive ad slot covers hosting.