Zustand

Zustand is a small, fast state management library for React that prioritizes simplicity and minimal boilerplate. A store is created with a single function call that defines state and actions together, and components access it through a hook without needing context providers, reducers, or action types. The entire API surface is deliberately tiny.

Despite its simplicity, Zustand handles complex scenarios well. It supports middleware for persistence, logging, and devtools integration. Selectors prevent unnecessary re-renders by letting components subscribe to specific slices of state rather than the entire store. State can be accessed outside of React components, which is useful for utility functions and API layers. For web developers choosing a state management solution for React applications, Zustand fills the space between using React's built-in useState and useContext for simple cases and adopting a more structured library like Redux for complex state. Its small bundle size and straightforward mental model make it a popular default choice for new projects.