React Native Desktop - Build OS X desktop apps using React Native
Atomize by Quarkly - Library for creating atomic react components
Arbiter IDE - The offline-friendly, in-browser IDE for pure JS prototypes
Bulma - Bulma is an open source CSS framework based on Flexbox and built with Sass. It's 100% responsive, fully modular, and available for free.
CodeOnline - A remote and secure workspace powered by VSCode
Circle.so - Bring together your discussions, memberships, and content. Integrate a thriving community wherever your audience is, all under your own brand.