Material UI: Comprehensive React component library that implements Google's Material Design. Free forever.

JavaScript API for Chrome and Firefox

A JS library for predictable global state management

Declarative routing for React

Quill is a modern WYSIWYG editor built for compatibility and extensibility

Delightful JavaScript Testing.

Immutable persistent data collections for Javascript which increase efficiency and simplicity.

Mattermost is an open source platform for secure collaboration across the entire software development lifecycle..

The open source frontend for GitBook doc sites

Browser extension that simplifies the GitHub interface and adds useful features

Official React bindings for Redux

A beautiful replacement for JavaScript's "alert"

A reference implementation of GraphQL for JavaScript

Selector library for Redux

Thunk middleware for Redux

JupyterLab computational environment.

DevTools for Redux with hot reloading, action replay, and customizable UI

The best JavaScript Data Table for building Enterprise Applications. Supports React / Angular / Vue / Plain JavaScript.

Google's officially supported Node.js client library for accessing Google APIs. Support for authorization and authentication with OAuth 2.0, API Keys and JWT (Service Tokens) is included.

GitHub notifications on your menu bar. Available on macOS, Windows & Linux.

A JavaScript library for rendering music notation and guitar tablature.

React Native Blur component

WarpDrive is a lightweight data library for web apps — universal, typed, reactive, and ready to scale.

redux-immutable is used to create an equivalent function of Redux combineReducers that works with Immutable.js state.

TodoMVC example using Redux, React, and Typescript