Zustand vs Redux: Which React State Manager Should You Use in 2026?

Originally published on PEAKIQ

What Is Redux?

Redux is a predictable state container for JavaScript apps. Originally inspired by the Elm architecture and Flux pattern, it has been the de-facto standard for complex React applications since 2015.

Today, Redux Toolkit (RTK) is the officially recommended way to write Redux logic — drastically reducing the boilerplate that gave Redux its infamous reputation.

npm install @reduxjs/toolkit react-redux

A minimal Redux Toolkit setup:

// store/counterSlice.ts

import { createSlice } from '@reduxjs/toolkit';



const counterSlice = createSlice({

  name: 'counter',

  initialState: { value: 0 },

  reducers: {

    increment: (state) => { state.value += 1; },

    decrement: (state) => { state.value -= 1; },

  },

});



export const { increment, decrement } = counterSlice.actions;

export default counterSlice.reducer;

// store/index.ts

import { configureStore } from '@reduxjs/toolkit';

import counterReducer from './counterSlice';



export const store = configureStore({

  reducer: { counter: counterReducer },

});



export type RootState = ReturnType<typeof store.getState>;

export type AppDispatch = typeof store.dispatch;

// Counter.tsx

import { useSelector, useDispatch } from 'react-redux';

import { increment, decrement } from './store/counterSlice';

import type { RootState } from './store';



export function Counter() {

  const count = useSelector((state: RootState) => state.counter.value);

  const dispatch = useDispatch();



  return (

    <div>

      <button onClick={() => dispatch(decrement())}>-</button>

      <span>{count}</span>

      <button onClick={() => dispatch(increment())}>+</button>

    </div>

  );

}

What Is Zustand?

Zustand (German for "state") is a small, fast, and scalable state management library built by the creators of Jotai and React Spring. It uses a simplified flux-inspired model without the ceremony.

npm install zustand

The same counter in Zustand:

// store/useCounterStore.ts

import { create } from 'zustand';



interface CounterState {

  value: number;

  increment: () => void;

  decrement: () => void;

}



export const useCounterStore = create<CounterState>((set) => ({

  value: 0,

  increment: () => set((state) => ({ value: state.value + 1 })),

  decrement: () => set((state) => ({ value: state.value - 1 })),

}));

// Counter.tsx

import { useCounterStore } from './store/useCounterStore';



export function Counter() {

  const { value, increment, decrement } = useCounterStore();



  return (

    <div>

      <button onClick={decrement}>-</button>

      <span>{value}</span>

      <button onClick={increment}>+</button>

    </div>

  );

}

No Provider. No boilerplate. Just a hook.

Head-to-Head Comparison

1. Boilerplate & Setup

Winner: Zustand — dramatically less ceremony for small-to-medium apps.

2. Learning Curve

Redux carries conceptual overhead: actions, reducers, selectors, middleware, and the Provider pattern. Redux Toolkit simplifies this significantly, but the mental model is still heavier than Zustand's.

Zustand's entire API fits on a single page. If you know React hooks, you're already 80% there.

Winner: Zustand for beginners; Redux for teams already comfortable with the pattern.

3. DevTools & Debugging

Redux's Redux DevTools Extension is one of the best debugging tools in frontend development. It gives you:

• Time-travel debugging


• Action history replay


• State diff viewer


• Persist & import state snapshots

Zustand supports DevTools via middleware:

import { create } from 'zustand';

import { devtools } from 'zustand/middleware';



const useStore = create(devtools((set) => ({

  value: 0,

  increment: () => set((state) => ({ value: state.value + 1 })),

})));

It works, but the experience isn't as polished. Action names are less granular and the history is harder to trace.

Winner: Redux — this is one of its biggest advantages.

4. Performance

Both libraries are highly performant, but their models differ:

• 
  Redux uses a single global store and relies on useSelector with reference equality checks to prevent unnecessary re-renders.


• 
  Zustand lets you subscribe to slices of state with fine-grained selectors, reducing re-renders with less boilerplate.
  

// Zustand: only re-renders when `value` changes

const value = useCounterStore((state) => state.value);

For most apps, the difference is negligible. At large scale with thousands of components, Redux Toolkit with createSelector (via reselect) gives more explicit optimization control.

Winner: Tie — both are fast. Zustand is easier to use performantly by default.

5. Middleware & Side Effects

Redux has a mature middleware ecosystem:

• 
  Redux Thunk (built into RTK) for async actions


• 
  Redux Saga for complex side-effect workflows


• 
  RTK Query for data fetching and caching

Zustand handles async naturally inside its actions:

const useUserStore = create<UserState>((set) => ({

  user: null,

  loading: false,

  fetchUser: async (id: string) => {

    set({ loading: true });

    const user = await api.getUser(id);

    set({ user, loading: false });

  },

}));

For data fetching, pairing Zustand with TanStack Query (React Query) is a popular and powerful combo.

Winner: Redux for complex async orchestration; Zustand + TanStack Query as a lean modern alternative.

6. Scalability

Redux enforces structure through its architecture — one store, explicit actions, and pure reducers. In large teams, this makes state changes predictable and traceable.

Zustand is more free-form. You can have multiple independent stores, colocated with features:

src/

  features/

    auth/

      useAuthStore.ts

    cart/

      useCartStore.ts

This works great for medium-sized apps but requires team discipline at scale. Without conventions, Zustand stores can drift in style across a large codebase.

Winner: Redux for large teams; Zustand for small-to-mid teams or solo projects.

7. Bundle Size

Winner: Zustand — nearly 13x smaller.

When to Choose Zustand

• ✅ Small-to-medium projects


• ✅ You want minimal boilerplate


• ✅ Solo developers or small teams


• ✅ Fast prototyping and MVPs


• ✅ Time-travel debugging isn't a hard requirement


• ✅ When combined with TanStack Query for server state

When to Choose Redux Toolkit

• ✅ Large-scale enterprise applications


• ✅ Teams that need strict, predictable patterns


• ✅ Complex async workflows (Redux Saga)


• ✅ You need powerful DevTools and time-travel debugging


• ✅ Projects using RTK Query for the API layer


• ✅ Codebases with many contributors needing enforced conventions

The Hybrid Approach

Many modern projects skip Redux entirely and use:

• 
  TanStack Query for server state (fetching, caching, synchronization)


• 
  Zustand for client/UI state (modals, themes, user preferences)
  

// Server state: TanStack Query

const { data: user } = useQuery({

  queryKey: ['user', id],

  queryFn: () => fetchUser(id),

});



// Client state: Zustand

const { isModalOpen, openModal } = useUIStore();

This separation of concerns is clean, maintainable, and covers the vast majority of real-world use cases.

Summary Table

Conclusion

There's no universally "better" library — it depends on your context.

If you're starting a new project in 2026 and aren't building a large-scale enterprise app, Zustand is likely the better default choice. It's simpler, smaller, and fast enough for the vast majority of use cases.

If you're in a large organization, already invested in Redux, or need the unmatched debugging power of Redux DevTools — stick with Redux Toolkit.

The good news? Both are mature, well-maintained libraries. And migrating between them is less painful than it used to be.

Further Reading

• Zustand Documentation


• Redux Toolkit Documentation


• TanStack Query


• RTK Query vs TanStack Query