JSON to Zod Schema

Paste a JSON object to generate the equivalent Zod validation schema for TypeScript.

JSON Input

Zod Schema

import { z } from "zod";

const Schema = z.object({
  userId: z.number().int(),
  username: z.string(),
  isAdmin: z.boolean(),
  roles: z.array(z.string()),
  settings: z.object({
    theme: z.string(),
    notifications: z.boolean()
  })
});

type Schema = z.infer<typeof Schema>;

Why use Zod?

TypeScript validates types at compile time, but Zod validates data at runtime. This is crucial when working with external APIs where the data shape might be unpredictable.

How to convert JSON to a Zod Schema

Step 1
Paste JSON
Paste your valid JSON object or array into the left editor panel.
Step 2
Format
The tool will automatically analyze the data types, handling nulls, arrays, and nested objects.
Step 3
Copy Schema
Click the copy button on the right panel to grab your ready-to-use TypeScript Zod schema.

Questions and answers

Is my JSON data sent to a server?

No. SyntaxSnap processes all data locally in your browser. Your sensitive JSON never leaves your device.

What is Zod?

Zod is a TypeScript-first schema declaration and validation library. It allows you to create schemas that validate data at runtime.

Does this support nested arrays?

Yes, the tool recursively analyzes nested objects and arrays to generate a complete schema structure.

How does the JSON to Zod converter handle nested objects?

The tool recursively analyzes your JSON structure to generate nested 'z.object()' and 'z.array()' definitions, ensuring full TypeScript type safety for complex API responses.

Can I use this for runtime schema validation?

Absolutely. This tool generates standard Zod schemas that allow you to validate external data at runtime, preventing 'any' types from polluting your TypeScript codebase.