VueUse
Collection of essential Vue Composition API utilities (composables). 200+ functions covering sensors (useMousePosition, useResizeObserver), state (useLocalStorage, useSessionStorage), browser APIs (useClipboard, useWebSocket, useNotification), and more. The Vue 3 equivalent of React's custom hooks ecosystem — eliminates the need to write common composable utilities from scratch.
Score Breakdown
⚙ Agent Friendliness
🔒 Security
Composable library — no network access. useLocalStorage stores data in browser localStorage — don't store sensitive data.
⚡ Reliability
Best When
Vue 3 projects that need common reactive utilities without writing them from scratch.
Avoid When
Vue 2 projects or React/other framework projects.
Use Cases
- • Persist component state to localStorage with reactive binding: const store = useLocalStorage('key', defaultValue)
- • Track mouse position, window size, or scroll position reactively: const { x, y } = useMouse()
- • Implement debounced/throttled reactive values: const debouncedSearch = useDebounce(searchQuery, 500)
- • Detect element visibility, intersection, or resize with reactive hooks: useIntersectionObserver, useResizeObserver
- • Manage async state with useAsyncState for loading, error, and data reactive refs
Not For
- • React projects — VueUse is Vue 3 only; use usehooks-ts or ahooks for React equivalents
- • Simple Vue 2 projects — VueUse requires Vue 3 Composition API
- • Projects needing custom behavior not in VueUse — implement custom composables; don't force VueUse patterns
Interface
Authentication
Library — no auth needed.
Pricing
MIT licensed open source library.
Agent Metadata
Known Gotchas
- ⚠ VueUse composables must be called inside setup() or <script setup> — calling them outside component context causes 'getCurrentInstance() is null' errors
- ⚠ SSR compatibility varies by composable — check SSR column in docs; server-side browser API composables (useWebGL, useGeolocation) may not work in Nuxt SSR
- ⚠ useLocalStorage default value is only used on first load — changing the default in code won't reset stored values; clear localStorage for testing
- ⚠ Reactive refs from VueUse are Vue's Ref type — access with .value in script, no .value in template (Vue auto-unwraps)
- ⚠ Some composables need explicit cleanup — though most auto-cleanup on unmount, custom composables wrapping VueUse may need onUnmounted() for resources
- ⚠ VueUse's watchDebounced/watchThrottled are separate from useDebounce — choose the right abstraction based on whether you want to watch or get a reactive value
Alternatives
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Scores are editorial opinions as of 2026-03-07.