Free JSON Schema to Zod Converter

Convert JSON Schema to Zod validation schema code with full type mapping, nested objects, arrays, enums and more. One-click copy TypeScript code.

JSON Schema Input

JSON Schema to Zod Conversion Guide

Zod is the most popular TypeScript-first validation library. Converting JSON Schema to Zod allows you to leverage better TypeScript type inference, more concise API, and superior error handling in your projects.

Type Mapping Reference

string → z.string()
number → z.number()
integer → z.number().int()
boolean → z.boolean()
array → z.array()
object → z.object()
enum → z.enum()
minLength/maxLength → .min()/.max()
pattern → .regex()

FAQ

What is Zod?

Zod is a TypeScript-first runtime validation library that provides type-safe schema definitions and validation. It validates data structures at runtime while automatically inferring TypeScript types, making it the preferred validation solution for frontend and Node.js projects.

What is the difference between JSON Schema and Zod?

JSON Schema is a standard JSON data validation specification using JSON format. Zod is a TypeScript library using chainable API for validation rules. Zod advantages: 1) Better TypeScript type inference; 2) More concise API; 3) Better error messages; 4) Supports transform and refine.

Which JSON Schema features are supported?

Supports most common features: string/number/integer/boolean/array/object types, nested objects, array element validation, enums, min/max constraints, regex patterns, required fields, optional fields, default values, description comments, etc.

Can the converted code be used directly?

Yes. The generated Zod code is complete, runnable TypeScript code. Just make sure the zod package is installed in your project (npm install zod). The code includes import statements and can be copied directly into your project.

Is my data safe?

Absolutely. All conversion happens locally in your browser. Your JSON Schema is never sent to any server.

🔄 JSON Schema to Zod Converter