Key Takeaways
- The #1 rule: keep state as local as possible. Most state does not need to be global.
- TanStack Query solved the server state problem: caching, refetching, and synchronization without Redux boilerplate.
- Zustand has largely replaced Redux for client state with a simpler API and zero boilerplate.
State Management Tools in 2026
| Tool | Type | Best For |
|---|---|---|
| useState | Local state | Component-specific data (form inputs, toggles) |
| Context API | Shared state | Theme, auth, locale (rarely changing data) |
| Zustand | Client state | Shopping cart, UI preferences, complex client state |
| TanStack Query | Server state | API data: fetching, caching, refetching, mutations |
| Jotai | Atomic state | Fine-grained reactive state with minimal re-renders |
Most modern React applications need only useState + TanStack Query. Add Zustand only when you have complex client-side state that multiple components need to share. Redux Toolkit is still valid for large teams with established patterns but is rarely the best choice for new projects.
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