1. A toolkit to build accessible web apps with React

  2. Storybook is an open source tool for developing UI components in isolation for React, Vue, and Angular. It makes building stunning UIs organized and efficient.

  3. Material Design for React Native (Android & iOS)

  4. React Native UI Components for Material Design

  5. The WordPress fork. No Gutenberg. Great future!

  6. An enterprise-class UI design language and React implementation with a set of high-quality React components, one of best React UI library for enterprises

  7. A UI Component library implemented using a set of specifications designed around natural language

  8. Build rich enterprise experiences and custom applications for the Salesforce platform.

  9. A lightweight and modular front-end framework for developing fast and powerful web interfaces

  10. Cross-platform Material component library for React

  11. Google's Material Design UI Components built with accessibility in mind, Sass, And React.

  12. React-based design library made for use with Elastic products