TypeScript

JSON to Zod Converter examples

Convert JSON to Zod schemas with strict objects, optional field inference, and inferred TypeScript types.

API user response

Nested objects, nullable fields, and arrays.

{
  "id": "usr_123",
  "name": "Ada Lovelace",
  "email": "ada@example.com",
  "verified": true,
  "roles": [
    "admin",
    "editor"
  ],
  "profile": {
    "website": "https://example.com",
    "timezone": null
  },
  "projects": [
    {
      "id": 1,
      "name": "Compiler notes",
      "active": true
    },
    {
      "id": 2,
      "name": "Analytical engine",
      "active": false,
      "archivedAt": null
    }
  ]
}

Open in JSON to Zod converter

Product payload

Useful for e-commerce and SaaS catalog APIs.

{
  "sku": "kit-pro",
  "price": 29,
  "currency": "USD",
  "tags": [
    "developer",
    "typescript",
    "tools"
  ],
  "limits": {
    "seats": 5,
    "apiCalls": 10000
  }
}

Open in JSON to Zod converter

Use these examples with guides

JSON to Zod converter

Convert sample payloads into copy-ready Zod schemas and inferred TypeScript types in the browser.

TypeScript to Zod Converter

Convert TypeScript interfaces and type aliases into Zod schemas when the source shape already lives in code.

Zod to JSON Schema Converter

Use the canonical online converter when an existing Zod schema needs JSON Schema, AJV, or OpenAPI output.

Validate API responses with Zod

Validate API responses, request bodies, and fetch boundaries with Zod schemas in TypeScript.

Zod parse vs safeParse

Choose between parse, safeParse, parseAsync, and safeParseAsync for TypeScript validation flows.

Zod safeParse

Validate unknown data without throwing, narrow the result type, and format safeParse errors.

Zod safeParse error messages

Format safeParse failures, field errors, and API validation responses in TypeScript.

Zod refine vs superRefine

Add custom validation, async checks, and field-level error paths after generating a starter schema.

Zod nativeEnum in Zod 4

Migrate z.nativeEnum patterns to z.enum, validate TypeScript enums, and avoid enum value mistakes.

Use JSON to Zod for form validation

Start from a submitted form payload, then add business rules such as email, length, and enum checks.

Zod to JSON Schema for OpenAPI

Publish Zod API schemas as OpenAPI-compatible contracts when teams need portable documentation.

ZodError flatten vs format

Shape validation errors with z.flattenError() for forms and z.treeifyError() for nested data in Zod 4.

Zod coerce for query params

Turn string query params and form fields into numbers, dates, and booleans, and avoid the coerce.boolean trap.

Zod email validation (z.email)

Validate emails with the top-level z.email() in Zod 4, add custom messages, and migrate off z.string().email().

Zod transform and pipe

Reshape validated data with transform, chain a second check with pipe, and use z.codec for reversible conversions.

Zod vs JSON Schema

Choose between TypeScript-first runtime validation and portable schema contracts.

Zod vs Yup vs Valibot

Compare TypeScript validation libraries for API boundaries, forms, server actions, and bundle tradeoffs.