redux vs mobx vs context
State Management Libraries Comparison
1 Year
reduxmobxcontextSimilar Packages:
What's State Management Libraries?

State management libraries are essential tools in modern web development, particularly for managing the state of applications in a predictable and efficient manner. They help developers maintain a single source of truth for application state, enabling easier debugging, testing, and scalability. These libraries provide patterns and structures for managing state changes, making it easier to build complex applications while ensuring that the UI remains in sync with the underlying data. Each library has its unique approach to state management, catering to different needs and preferences in application architecture.

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redux14,061,78661,285290 kB432 years agoMIT
mobx1,890,55027,9764.33 MB724 months agoMIT
context35,1032,60649 kB248 months agoMIT
Feature Comparison: redux vs mobx vs context

State Management Approach

  • redux:

    Redux implements a strict unidirectional data flow, where the state is stored in a single immutable store. State changes are made through actions and reducers, ensuring that the state can only be modified in a predictable manner, which aids in debugging and testing.

  • mobx:

    MobX uses observable state and reactions to automatically update the UI when the state changes. It emphasizes simplicity and minimal boilerplate, allowing developers to focus on the business logic rather than the intricacies of state management.

  • context:

    Context API provides a way to share values between components without having to explicitly pass props through every level of the tree. It is suitable for simple state management and allows for direct access to the state from any component that subscribes to the context.

Learning Curve

  • redux:

    Redux has a steeper learning curve due to its concepts of actions, reducers, and middleware. Developers need to understand the principles of functional programming and immutability, which can be challenging for beginners.

  • mobx:

    MobX has a gentle learning curve, particularly for those familiar with reactive programming. Its straightforward API and less verbose syntax make it easier to grasp compared to Redux, especially for smaller applications.

  • context:

    The Context API is relatively easy to learn, especially for developers already familiar with React. It requires minimal setup and is integrated directly into React, making it accessible for small projects.

Boilerplate Code

  • redux:

    Redux often requires more boilerplate code due to its structured approach. Developers need to define actions, reducers, and the store, which can lead to verbose code, especially in larger applications.

  • mobx:

    MobX minimizes boilerplate code by allowing developers to define observables and reactions with less configuration. This leads to cleaner and more concise code, making it easier to maintain.

  • context:

    Context API requires minimal boilerplate code, making it quick to implement. You can easily create and use contexts without extensive setup, which is beneficial for smaller applications.

Performance

  • redux:

    Redux can experience performance bottlenecks if not optimized, particularly with large state trees or frequent updates. However, techniques like memoization, selectors, and middleware can help manage performance effectively.

  • mobx:

    MobX is designed for performance, as it only re-renders components that directly depend on the observable state that has changed. This fine-grained reactivity can lead to better performance in applications with complex state interactions.

  • context:

    The Context API can lead to performance issues if not used carefully, as any change in context will cause all subscribed components to re-render. This can be mitigated by optimizing context usage and splitting contexts where necessary.

Debugging and DevTools

  • redux:

    Redux has a robust ecosystem of DevTools that allow developers to inspect every action and state change, making it one of the best options for debugging complex applications. The time-travel debugging feature is particularly useful for tracking down issues.

  • mobx:

    MobX has excellent support for debugging, with tools that allow developers to track observable changes and reactions. This makes it easier to understand how state changes affect the UI.

  • context:

    Debugging with Context API can be straightforward, but it lacks dedicated tools for tracking state changes. Developers may need to rely on console logs or custom solutions for debugging state issues.

How to Choose: redux vs mobx vs context
  • redux:

    Choose Redux if you are building a large-scale application that requires a predictable state container with a strict unidirectional data flow. Redux is well-suited for complex applications with multiple state changes, as it provides a clear structure and powerful debugging capabilities.

  • mobx:

    Choose MobX if you prefer a more reactive programming model and want to minimize boilerplate code. It is ideal for applications that require a more straightforward and less opinionated approach to state management, allowing for automatic updates of the UI based on observable state changes.

  • context:

    Choose Context if your application is relatively simple and you want to avoid the overhead of a more complex state management solution. It is best for small to medium-sized applications where you need to share state across a few components without the need for advanced features.

README for redux

Redux Logo

Redux is a predictable state container for JavaScript apps.

It helps you write applications that behave consistently, run in different environments (client, server, and native), and are easy to test. On top of that, it provides a great developer experience, such as live code editing combined with a time traveling debugger.

You can use Redux together with React, or with any other view library. The Redux core is tiny (2kB, including dependencies), and has a rich ecosystem of addons.

Redux Toolkit is our official recommended approach for writing Redux logic. It wraps around the Redux core, and contains packages and functions that we think are essential for building a Redux app. Redux Toolkit builds in our suggested best practices, simplifies most Redux tasks, prevents common mistakes, and makes it easier to write Redux applications.

GitHub Workflow Status npm version npm downloads redux channel on discord

Installation

Create a React Redux App

The recommended way to start new apps with React and Redux Toolkit is by using our official Redux Toolkit + TS template for Vite, or by creating a new Next.js project using Next's with-redux template.

Both of these already have Redux Toolkit and React-Redux configured appropriately for that build tool, and come with a small example app that demonstrates how to use several of Redux Toolkit's features.

# Vite with our Redux+TS template
# (using the `degit` tool to clone and extract the template)
npx degit reduxjs/redux-templates/packages/vite-template-redux my-app

# Next.js using the `with-redux` template
npx create-next-app --example with-redux my-app

We do not currently have official React Native templates, but recommend these templates for standard React Native and for Expo:

  • https://github.com/rahsheen/react-native-template-redux-typescript
  • https://github.com/rahsheen/expo-template-redux-typescript
npm install @reduxjs/toolkit react-redux

For the Redux core library by itself:

npm install redux

For more details, see the Installation docs page.

Documentation

The Redux core docs are located at https://redux.js.org, and include the full Redux tutorials, as well usage guides on general Redux patterns:

The Redux Toolkit docs are available at https://redux-toolkit.js.org, including API references and usage guides for all of the APIs included in Redux Toolkit.

Learn Redux

Redux Essentials Tutorial

The Redux Essentials tutorial is a "top-down" tutorial that teaches "how to use Redux the right way", using our latest recommended APIs and best practices. We recommend starting there.

Redux Fundamentals Tutorial

The Redux Fundamentals tutorial is a "bottom-up" tutorial that teaches "how Redux works" from first principles and without any abstractions, and why standard Redux usage patterns exist.

Help and Discussion

The #redux channel of the Reactiflux Discord community is our official resource for all questions related to learning and using Redux. Reactiflux is a great place to hang out, ask questions, and learn - please come and join us there!

Before Proceeding Further

Redux is a valuable tool for organizing your state, but you should also consider whether it's appropriate for your situation. Please don't use Redux just because someone said you should - instead, please take some time to understand the potential benefits and tradeoffs of using it.

Here are some suggestions on when it makes sense to use Redux:

  • You have reasonable amounts of data changing over time
  • You need a single source of truth for your state
  • You find that keeping all your state in a top-level component is no longer sufficient

Yes, these guidelines are subjective and vague, but this is for a good reason. The point at which you should integrate Redux into your application is different for every user and different for every application.

For more thoughts on how Redux is meant to be used, please see:

Basic Example

The whole global state of your app is stored in an object tree inside a single store. The only way to change the state tree is to create an action, an object describing what happened, and dispatch it to the store. To specify how state gets updated in response to an action, you write pure reducer functions that calculate a new state based on the old state and the action.

Redux Toolkit simplifies the process of writing Redux logic and setting up the store. With Redux Toolkit, the basic app logic looks like:

import { createSlice, configureStore } from '@reduxjs/toolkit'

const counterSlice = createSlice({
  name: 'counter',
  initialState: {
    value: 0
  },
  reducers: {
    incremented: state => {
      // Redux Toolkit allows us to write "mutating" logic in reducers. It
      // doesn't actually mutate the state because it uses the Immer library,
      // which detects changes to a "draft state" and produces a brand new
      // immutable state based off those changes
      state.value += 1
    },
    decremented: state => {
      state.value -= 1
    }
  }
})

export const { incremented, decremented } = counterSlice.actions

const store = configureStore({
  reducer: counterSlice.reducer
})

// Can still subscribe to the store
store.subscribe(() => console.log(store.getState()))

// Still pass action objects to `dispatch`, but they're created for us
store.dispatch(incremented())
// {value: 1}
store.dispatch(incremented())
// {value: 2}
store.dispatch(decremented())
// {value: 1}

Redux Toolkit allows us to write shorter logic that's easier to read, while still following the original core Redux behavior and data flow.

Logo

You can find the official logo on GitHub.

Change Log

This project adheres to Semantic Versioning. Every release, along with the migration instructions, is documented on the GitHub Releases page.

License

MIT