Ecosystem related to the `React` library

Ecosystem related to the `Vue.js` library

Collections of styled components for specific UI libraries (React, Vue.js...)

Tools to help with automatic testing: unit tests, smoke tests, end-to-end tests...

Charting libraries to visualize data in the browser

Tools that abstract client-server interactions for the developer, so they can focus on their own API and routes rather than handling the network layer itself

Libraries and frameworks to build UI running in the browser

Ecosystem related to the `Angular` library

Libraries that manipulate the `<canvas>` HTML element

Resources to learn about JavaScript, CSS, Node.js and web development in general

Tools to use static types in JavaScript

Libraries to animate things in the browser