TypeScript to Zod
Convert TypeScript interfaces to Zod schemas with AI.
You already have TypeScript interfaces — now add runtime validation with Zod. Paste any TypeScript interface or type alias and get a complete Zod schema with the exported z.infer<> type, ready to drop into your project.
Paste your code here. Then click Convert.
Zod Schema
How to use this tool?
This online converter harnesses AI to translate TypeScript interfaces and types to Zod schemas. Follow these steps:
- Type or paste your TypeScript interface or type alias into the input box provided.
- Click the "Convert" button to generate the equivalent Zod schema.
- View the Zod schema and inferred type in the output box, ready to use in your project.
Example: Simple Function
TypeScript
interface User {
id: number;
name: string;
email?: string;
active: boolean;
}
Zod Schema
import { z } from 'zod';
export const UserSchema = z.object({
id: z.number(),
name: z.string(),
email: z.string().optional(),
active: z.boolean(),
});
export type User = z.infer<typeof UserSchema>;
Frequently Asked Questions
Why convert TypeScript to Zod?
Zod adds runtime validation on top of TypeScript's compile-time checks. Converting existing interfaces to Zod lets you validate API responses, form inputs, and environment variables at runtime — catching errors that TypeScript alone cannot.
Does it handle optional fields and union types?
Yes. Optional fields (?) become .optional(), union types (string | number) become z.union([z.string(), z.number()]), and null becomes z.null().
What about nested interfaces?
Nested interfaces become nested z.object() calls. Each nested type is converted recursively and referenced inline in the parent schema.
Do I need to install anything?
To use the generated schema in your project, run: npm install zod. The output includes the required import { z } from 'zod' statement.
Is the tool free?
Yes, completely free with no account required.