Glimmer - Fast and light-weight UI components for the web
React Native - A framework for building native apps with React
Preact.js - Preact is a fast 3kB alternative to React with the same modern API. Components & Virtual DOM.
Deco IDE - Best IDE for building React Native apps
Svelte - Cybernetically enhanced web apps
React Boilerplate - Offline-first, highly scalable foundation for your next app