JSON to TypeScript Interface & Zod v3 Schema Generator Online (100% Client-Side)

Paste any nested API JSON payload to instantly generate clean TypeScript interfaces alongside runtime Zod v3 validation schemas (with automatic UUID, ISO datetime, email, and nullable array inference)—100% locally in your browser.

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Polyglot Type & Data Structure Forge

Parse JSON, YAML, SQL DDL (CREATE TABLE), and cURL into modern TypeScript (Interface + Zod v3), Go Structs, Rust Serde, and Python Pydantic v2 in milliseconds.

Source Format

Target Language

Root Type Name:

camelCase FieldsAll OptionalStrict ModeComments

📥 Source Input (JSON)

{
  "id": "9b1deb4d-3b7d-4bad-9bdd-2b0d7b3dcb6d",
  "username": "alan_turing",
  "email": "alan@yunsin.top",
  "age": 41,
  "accountBalance": 1250.75,
  "isActive": true,
  "createdAt": "2026-10-31T12:00:00Z",
  "tags": ["cryptography", "math", "indie-hacker"],
  "preferences": {
    "theme": "dark",
    "notificationsEnabled": true,
    "loginAttempts": 2
  }
}

📤 Generated Code

import { z } from 'zod';

export interface Preferences {
  theme: string;
  notificationsEnabled: boolean;
  loginAttempts: number;
}

export const PreferencesSchema = z.object({
  theme: z.string(),
  notificationsEnabled: z.boolean(),
  loginAttempts: z.number().int(),
}).strict();

export interface UserProfile {
  id: string;
  username: string;
  email: string;
  age: number;
  accountBalance: number;
  isActive: boolean;
  createdAt: string;
  tags: string[];
  preferences: Preferences;
}

export const UserProfileSchema = z.object({
  id: z.string().uuid(),
  username: z.string(),
  email: z.string(),
  age: z.number().int(),
  accountBalance: z.number(),
  isActive: z.boolean(),
  createdAt: z.string().datetime(),
  tags: z.array(z.string()),
  preferences: PreferencesSchema,
}).strict();

export type UserProfileType = z.infer<typeof UserProfileSchema>;

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Stop Writing `any` or Hand-Coding Boilerplate Zod Validators

Compile-time TypeScript interfaces vanish at runtime. Pre-locked to TypeScript + Zod v3 dual output, this local AST generator inspects nested objects, heterogeneous arrays, UUIDs, and timestamps to emit production-ready types and runtime parsers without leaking proprietary API payloads.

Frequently Asked Questions (FAQ)

Q1 Does my proprietary API JSON ever leave my browser?

Never. Parsing and code generation execute 100% client-side with zero network calls—safe for enterprise and NDA-protected API schemas.

Polyglot Type & Data Structure Forge

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Stop Writing any or Hand-Coding Boilerplate Zod Validators

Frequently Asked Questions (FAQ)

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