July 16, 2025. Modified on July 16, 2025 at 07:04 AM
State Management in React 2025

The state of state management in React for 2025 - comparing libraries, patterns, and emerging trends. Learn when to use server state vs client state, how to choose between Zustand, Jotai, and React Query, and patterns for managing complex application state efficiently.
State Management in 2025: The Complete Guide
With React 19 and new patterns, state management has evolved significantly. Here's what matters now.
The Modern State Landscape
1. Server State
- Tools: React Query, SWR, Apollo
- When: Data from APIs/backend
- Benefits: Caching, deduping, background updates
2. Client State
- Tools: Zustand, Jotai, Redux
- When: UI state, local data
- Benefits: Performance, flexibility
3. URL State
- Tools: Next.js searchParams, React Router
- When: Shareable state, filters
- Benefits: Deep linking, back button
Library Comparison
| Library | Size | Learning Curve | Best For |
|---|---|---|---|
| Zustand | 1kb | Easy | Global client state |
| Jotai | 3kb | Medium | Derived state |
| Redux | 10kb | Hard | Large complex apps |
| React Query | 7kb | Medium | Server state |
Practical Examples
Zustand Store
import { create } from 'zustand';
interface BearState {
bears: number;
increase: () => void;
}
const useBearStore = create<BearState>((set) => ({
bears: 0,
increase: () => set((state) => ({ bears: state.bears + 1 })),
}));
// Usage
function BearCounter() {
const bears = useBearStore((state) => state.bears);
const increase = useBearStore((state) => state.increase);
return <button onClick={increase}>Bears: {bears}</button>;
}
React Query Example
function Posts() {
const { data, error, isLoading } = useQuery({
queryKey: ['posts'],
queryFn: fetchPosts,
staleTime: 1000 * 60 * 5, // 5 minutes
});
if (isLoading) return <Loader />;
if (error) return <Error message={error.message} />;
return data.map(post => <Post key={post.id} {...post} />);
}
Server Components Impact
- Less Client State: Move to server when possible
- Serializable State: Pass data from server to client
- Hybrid Patterns: Combine server and client state
Emerging Patterns
1. State Machines
Using XState:
const toggleMachine = createMachine({
id: 'toggle',
initial: 'inactive',
states: {
inactive: { on: { TOGGLE: 'active' } },
active: { on: { TOGGLE: 'inactive' } }
}
});
function Toggle() {
const [state, send] = useMachine(toggleMachine);
return (
<button onClick={() => send('TOGGLE')}>
{state.matches('inactive') ? 'Off' : 'On'}
</button>
);
}
2. Atomic State
Using Jotai:
const countAtom = atom(0);
const doubledAtom = atom((get) => get(countAtom) * 2);
function Counter() {
const [count, setCount] = useAtom(countAtom);
const [doubled] = useAtom(doubledAtom);
return (
<div>
<button onClick={() => setCount(c => c + 1)}>
Count: {count}
</button>
<div>Doubled: {doubled}</div>
</div>
);
}
When to Choose What
- Small Apps: Zustand + React Query
- Medium Apps: Jotai + React Query
- Large Apps: Redux + RTK Query
- Microfrontends: Zustand + Module Federation
Future of State Management
- More Server Integration: Less client state
- Compiler Optimizations: React Forget
- Standardization: Possible React-native solution
- AI-Assisted: Automatic state organization
"State management is about finding the right balance between predictability and productivity." - Dan Abramov




