Primitive Types in Zod
From the Zod cheat sheet · Primitive Schemas · verified Jul 2026
Primitive Types
Schemas for strings, numbers, booleans, dates, and special types
typescript
import * as z from "zod";
z.string();
z.number();
z.boolean();
z.date();
z.bigint();
z.symbol();
z.null();
z.undefined();
z.any();
z.unknown();
z.never();💡 Zod schemas are immutable — methods return new schemas instead of mutating
⚡ Use z.unknown() instead of z.any() to keep type safety throughout your code
📌 z.literal() matches an exact value — useful for tagged unions and constants
🟢 z.date() validates Date objects, not date strings — use z.coerce.date() for strings
primitivestypes