@ngrx/store is a state management library for Angular applications, inspired by Redux. It provides a centralized store for managing the state of your application and enables predictable state management through a unidirectional data flow. With @ngrx/store, you can define actions, reducers, and selectors to manage and access application state in a structured and efficient way.
Valtio is a minimalist and standalone state management library for React applications. It provides a simple API for creating reactive state objects that can be easily shared and accessed across components. Valtio leverages ES6 Proxies to automatically track state changes and trigger re-renders when the state is updated, leading to efficient and performant UI updates.
@ngrx/store is a widely-used state management library in the Angular ecosystem. It has a strong and dedicated community following. On the other hand, Valtio is a relatively newer library with a smaller but growing community.
Scalability
@ngrx/store is designed for large-scale applications and provides robust support for managing complex application states. It offers features like middleware, effects, and selectors to handle asynchronous operations and maintain a structured and scalable state management system. Valtio, on the other hand, is a lightweight library focused on simplicity and may be more suitable for smaller or medium-sized applications.
Developer Experience
Both libraries provide a good developer experience but with slightly different approaches. @ngrx/store follows a more traditional Redux-like pattern with explicit actions, reducers, and selectors. It has well-established patterns and extensive tooling support, which can be beneficial for developers already familiar with Redux. Valtio takes a more minimalistic approach, using proxies to provide a reactive state management system. It provides a simpler and intuitive API that requires less boilerplate code.
Performance
Valtio is known for its exceptional performance due to its efficient reactivity system. It leverages ES6 proxies to achieve fine-grained reactivity, resulting in minimal overhead. @ngrx/store provides good performance as well, but its immutability patterns and heavy reliance on Redux middleware can introduce some level of performance cost.
Integration and Compatibility
@ngrx/store is tightly integrated with the Angular framework and is the recommended state management solution for Angular applications. It provides seamless integration with other Angular features like dependency injection and observables. On the other hand, Valtio is framework-agnostic and can be used with any JavaScript framework or library, making it more flexible and compatible in different project setups.
Ecosystem and Support
Both libraries have active maintainers and support from their respective communities. However, @ngrx/store benefits from a larger ecosystem and extensive tooling, including Redux DevTools for debugging and NgRx Entity for handling entity state management. Valtio, being a newer library, has a smaller ecosystem but is still actively developed and maintained.
