JSON to TypeScript (Zod) Converter

How to use

1. Paste JSON input from your API payload or sample document.
2. Select your output target and model options.
3. Generate, review, and copy the result.

Benefits

• Handles nested objects and arrays from API responses.
• Reduces manual model writing and naming inconsistencies.
• Works instantly in browser with copy-ready output.

Best use cases

• Generate runtime-validated schemas for API boundaries.
• Infer TypeScript types from Zod schemas with z.infer.
• Standardize request and response validation in frontend apps.

Type mapping notes

• Objects map to z.object schemas.
• Primitive values map to z.string, z.number, and z.boolean validators.
• Array values map to z.array(itemSchema) definitions.

Implementation tips

• Keep schema files near network request handlers.
• Export inferred types alongside schema constants for consistency.
• Review nullable and optional fields from partial API payloads.

Sample JSON

{
  "id": 101,
  "name": "Ada Lovelace",
  "active": true,
  "roles": ["admin", "editor"],
  "profile": {
    "email": "ada@example.com",
    "score": 9.8
  }
}

Sample output

import { z } from "zod";

export const UserModelSchema = z.object({
  id: z.number(),
  name: z.string(),
  active: z.boolean(),
  roles: z.array(z.string()),
  profile: z.object({
    email: z.string(),
    score: z.number()
  })
});

FAQ