Question 1

What TypeScript features does the converter support?

Accepted Answer

Type aliases (type T = ...), interfaces, enums, primitives (string, number, boolean), string and number literals, arrays (T[] and Array), unions (A | B), optional fields (?:), null/undefined, Date, Record, tuples, and nested objects. Generic type parameters and utility types like Pick/Omit are not supported.

Question 2

How does optional map to Zod?

Accepted Answer

A property marked optional in TypeScript (name?: string) becomes .optional() in Zod (z.string().optional()). A nullable type (string | null) becomes z.string().nullable(). Combined optionals produce z.string().nullable().optional().

Question 3

Does it infer refinements like min length?

Accepted Answer

The tool focuses on type shape, not runtime constraints from comments or JSDoc. You can add .min(), .max(), .email() etc. manually after generating the base schema.

Question 4

Is my TypeScript uploaded to a server?

Accepted Answer

No. All parsing and code generation run entirely in your browser. Your code never leaves your device.