Feature flags for the edge.

Unleash feature flags for Nuxt that work everywhere — Cloudflare Workers, Vercel, Node.js.
No SDK, no flicker, no Node.js-only dependencies.

Edge-First

No unleash-client SDK, no Node.js-only APIs. Runs on Cloudflare Workers, Vercel, Deno, or plain Node.js — anywhere Nitro runs.

Zero Flicker SSR

Flags are resolved server-side during rendering and hydrated to the client. No undefined state, no layout shift.

NuxtHub Native

First-class NuxtHub KV integration. One config line gives you persistent, edge-local flag storage on Cloudflare.

Reactive Composables

Auto-imported useFlag, useVariant, useAllFlags, and useFlagsStatus — all reactive, all type-safe.

Stale-While-Revalidate

Instant responses from cache, background refresh when stale. No polling on the server — just lazy, per-request revalidation.

Pluggable Storage

NuxtHub KV, any Nitro/unstorage driver (Redis, Cloudflare KV, filesystem), or simple in-memory.

Zero Dependencies

No unleash-client SDK. Just @nuxt/kit and defu. Lightweight, auditable, no supply chain bloat.

Type Safe

Generated type declarations for composables, server utils, $fetch, and useFetch. Full autocompletion in your IDE.