JSON to Zod Schema
Generate Zod schemas from JSON online — nested objects become named z.object() schemas with .nullish() optionals and a z.infer type export. Free, no upload.
Zod schema output
import { z } from "zod";
const RootSchema = z.object({
id: z.number().int(),
name: z.string(),
email: z.string(),
address: AddressSchema,
roles: z.array(z.string()),
team: z.null().nullish(),
});
const AddressSchema = z.object({
city: z.string(),
zip: z.string(),
});
export type Root = z.infer<typeof RootSchema>;About JSON to Zod Schema
Paste example JSON and get ready-to-use Zod schemas: nested objects become separately named z.object() declarations, arrays are type-merged, and fields missing in some array items or null-valued are emitted as .nullish().
The output ends with an export type = z.infer<typeof Schema> so validation and typing stay in sync. Everything runs locally in your browser — nothing is uploaded.