Defining Objects in Zod
From the Zod cheat sheet · Object Schemas · verified Jul 2026
Defining Objects
Create object schemas with required and optional properties
typescript
const UserSchema = z.object({
id: z.uuid(),
name: z.string(),
email: z.email(),
age: z.number().optional(),
createdAt: z.date(),
});
type User = z.infer<typeof UserSchema>;💡 z.object() strips unknown keys by default — use strictObject to reject them
⚡ z.infer extracts a TypeScript type from a schema — single source of truth
📌 Optional properties become T | undefined in the inferred type
🟢 Use catchall() to validate dynamic keys against a fallback schema
objectschema