What Zod types are generated?

Primitives map to z.string(), z.number(), z.boolean() and z.null(); objects become z.object({ ... }); arrays become z.array(T), and a mixed array becomes z.array(z.union([...])). An empty array becomes z.array(z.unknown()).

Does it include a TypeScript type?

Yes — the output exports the schema and a matching type via z.infer , so you get both runtime validation and a static type from one definition.

Is my JSON uploaded anywhere?

No. The inference runs entirely in your browser with JavaScript — your data is never sent to a server or stored.

JSON to Zod Schema

Generate a Zod validation schema from a JSON sample.

Generate a Zod schema from JSON

Paste a representative JSON sample and get a ready-to-use Zod schema plus an inferred TypeScript type. Nested objects are inlined as z.object(...), arrays become z.array(...), and mixed arrays produce a z.union(...) element type.

Because the schema is inferred from one sample, add .optional() or .nullable() where your real data needs it. All inference happens in your browser — your JSON is never uploaded or stored.