JSON to TypeScript Interface & Zod Schema Generator

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Convert raw JSON objects into typed TypeScript interface definitions or Zod validation schemas instantly. 100% Client-Side.

JSON Source Input

{
  "id": 101,
  "title": "JoyTools Platform",
  "active": true,
  "user": {
    "name": "Alex",
    "roles": [
      "admin",
      "developer"
    ]
  },
  "tags": [
    "typescript",
    "nextjs",
    "react"
  ]
}

export interface UserPayload {
  id: number;
  title: string;
  active: boolean;
  user: UserPayloadUser;
  tags: string[];
}

export interface UserPayloadUser {
  name: string;
  roles: string[];
}

How do I use JSON to TypeScript Interface & Zod Schema Generator?

Paste any JSON string into the input editor.

Set custom root interface name or toggle type alias and optional properties.

Switch between TypeScript interface and Zod schema outputs.

Copy generated code directly into your React / Next.js project.

What features does JSON to TypeScript Interface & Zod Schema Generator offer?

Recursive AST JSON object & array type inferencing

Supports TypeScript interfaces & type aliases

Generates Zod validation schemas (z.object({ ... }))

100% client-side local browser execution

Frequently Asked Questions about JSON to TypeScript Interface & Zod Schema Generator

Does it support nested objects and arrays?

Yes! Nested objects and object arrays automatically generate child interfaces with clear naming conventions.

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