React Native UI Kitten is a mobile framework that contains a set of commonly used UI components styled in a similar way.
Material Components for the web (MDC-Web) help developers execute Material Design. Developed by a core team of engineers and UX designers at Google, these components enable a reliable development workflow to build beautiful and functional web projects.
Preact is an attempt to recreate the core value proposition of React using as little code as possible, with first-class support for ES2015. Currently the library is around 3kb (minified & gzipped).
Awesome React Components is a huge catalog of React components and libraries. You can also add your react component / library to this catalog.
React Sortable is a set of higher-order components to turn any list into an animated, touch-friendly, sortable list
Material Kit is a Free Bootstrap UI Kit with a fresh, new design inspired by Google's Material Design. Material concepts in an easy to use and beautiful set of components.
Material Design components for Angular 2 apps.
React-Bootstrap is a library of reuseable front-end components. You'll get the look-and-feel of Bootstrap, but with much cleaner code, via React.js framework.
Materialize is a modern responsive front-end framework based on Material Design.
Vue.js is a library for building interactive web interfaces. It provides data-reactive components with a simple and flexible API.c
Elemental UI is a flexible and beautiful UI Toolkit for React.js Websites and Apps.
There are modular set of UI scaffolding components and controls for React that are built from the outset to natively implement React patterns.