Cookies

Cookies is a type-safe cookie management library with first-class support for schema validation. Define your cookies once with optional validation schemas and get full type inference when reading and writing.

Why Cookies?

• Type-safe — Full TypeScript inference for cookie values.
• Schema validation — First-class support for Standard Schema (Zod, Valibot, ArkType, etc.).
• Framework adapters — Built-in adapters for Next.js and browser environments.
• Automatic serialization — JSON values are automatically serialized and deserialized.

Quick Example

import { createCookie } from "@jlnstack/cookies/next"
import { z } from "zod"

const userPrefs = createCookie(
  "user-prefs",
  z.object({
    theme: z.enum(["light", "dark"]),
    language: z.string()
  })
)

// Read cookie (returns undefined if missing or invalid)
const prefs = await userPrefs.get()

// Write cookie
await userPrefs.set({ theme: "dark", language: "en" })

// Delete cookie
await userPrefs.delete()