Open-source framework wraps React and CSS and provides a catalog of components and a theme system for composing user ...

React was originally a project built at Facebook to manage its ads. Now it's used by Pinterest, Twitter, Asana, Uber, and more. Here's how it started.

He told me that the success of React Native as an open-source project took him by surprise. For the company itself, though, deciding to go the open-source route wasn’t ever really in question.