React Native - A framework for building native apps with React
ChocolateChip-UI - Light, customizable front-end framework for apps and sites
Render UIKit - React-inspired Swift library for writing UIKit UIs
Cypress.io - Slow, difficult and unreliable testing for anything that runs in a browser. Install Cypress in seconds and take the pain out of front-end testing.
Ionic - Ionic is a cross-platform mobile development stack for building performant apps on all platforms with open web technologies.
WebCodeSniffer - Validate your code for consistency with a coding standard.