Peakiq Blog
31 December 2025

Redux enforces a very clear mental model:
State lives in a single store
State is read-only
Changes happen through actions
Reducers decide how state updates
With Redux Toolkit, this has become much more manageable.
// 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.ts
import { configureStore } from "@reduxjs/toolkit";
import counterReducer from "./counterSlice";export const store = configureStore({
reducer: {
counter: counterReducer,
},
});
// Counter.tsx
import { useDispatch, useSelector } from "react-redux";
import { increment } from "./counterSlice";export function Counter() {
const value = useSelector((state: any) => state.counter.value);
const dispatch = useDispatch();
return (
<button onClick={() => dispatch(increment())}>
Count: {value}
</button>
);
}
Redux is explicit. Every state change is visible and traceable.
That’s powerful—but it also means more setup and more mental overhead.
Zustand removes most of the ceremony.
There are no reducers. No action types. No provider wrapping your app.
You create a store and use it like a hook.
// useCounterStore.ts
import { create } from "zustand";const useCounterStore = create((set) => ({
value: 0,
increment: () =>
set((state) => ({ value: state.value + 1 })),
decrement: () =>
set((state) => ({ value: state.value - 1 })),
}));
export default useCounterStore;
// Counter.tsx
import useCounterStore from "./useCounterStore";export function Counter() {
const { value, increment } = useCounterStore();
return (
<button onClick={increment}>
Count: {value}
</button>
);
}
That’s the entire setup.
For many apps, this feels refreshingly simple.
Redux still requires:
slices
store configuration
providers
selectors
dispatching actions
Zustand requires:
a store
a hook
That difference becomes very noticeable when you’re building fast or working on smaller features.
export const fetchUser = createAsyncThunk(
"user/fetch",
async () => {
const res = await fetch("/api/user");
return res.json();
}
);Async logic is powerful but spread across multiple concepts.
const useUserStore = create((set) => ({
user: null,
loading: false,
fetchUser: async () => {
set({ loading: true });
const res = await fetch("/api/user");
const data = await res.json();
set({ user: data, loading: false });
},
}));Zustand keeps async logic close to the state it affects, which often feels more natural.
Both Redux and Zustand are fast.
Redux relies on memoized selectors and useSelector behavior.
Zustand allows subscribing to specific slices of state:
const value = useCounterStore((state) => state.value);This fine-grained subscription helps avoid unnecessary re-renders without extra effort.
In real projects, performance rarely becomes the deciding factor—clarity usually does.
This is where Redux still shines.
In large teams and long-running projects:
Strict patterns prevent chaos
State changes are predictable
Debugging with Redux DevTools is excellent
Zustand can scale, but only if the team enforces discipline. Without structure, stores can slowly turn into dumping grounds for unrelated logic.
Redux makes sense when:
The app is large or expected to grow
Multiple developers work on shared state
Business logic is complex
You need strong debugging and traceability
Zustand is ideal when:
You want minimal setup
The app is small to medium in size
State is mostly UI or feature-based
Speed and simplicity matter more than rigid structure
Redux is about control and consistency.
Zustand is about simplicity and momentum.
Neither is objectively better. They’re tools for different situations.
If your state logic already feels heavy, Redux will help you organize it.
If Redux feels like overkill, Zustand will likely feel like relief.
The best choice is the one your team can understand, maintain, and evolve comfortably.