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Many developers install Redux by default. They accept boilerplate, action dispatchers, and complex providers as a tax for scaling.
React architecture has changed. React Server Components now handle server state. Your client side state should be lightweight and fast.
If you use Redux Toolkit for simple UI states or feature flags, you are over-engineering.
Compare the two options:
Redux Toolkit:
- Uses createSlice and configureStore.
- Requires a Provider wrapper.
- Bundle size is roughly 13.6 KB.
- Uses a strict unidirectional flow.
Zustand:
- Uses a simple create hook.
- Requires no Provider.
- Bundle size is roughly 1.2 KB.
- Uses fine-grained selectors.
Zustand reduces your configuration to a single hook. You avoid the ceremony of actions and dispatchers.
Choose Zustand if:
- You need a small bundle size for mobile web apps.
- You use TanStack Query for API management.
- You want to build and ship features faster.
Choose Redux Toolkit if:
- You rely on RTK Query for data fetching.
- You work in large teams that need strict code standards.
- You need advanced time-travel debugging tools.
Do not use heavy architecture for small problems. Use Redux Toolkit for complex transactional side effects in huge organizations. Use Zustand for clean, fast, and simple state management.