ChocolateChip-UI - Light, customizable front-end framework for apps and sites
React Native - A framework for building native apps with React
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.
SwiftUI - SwiftUI is an innovative, exceptionally simple way to build user interfaces across all Apple platforms with the power of Swift.
WebCodeSniffer - Validate your code for consistency with a coding standard.
ComponentKit - ComponentKit by Facebook: A React-Inspired View Framework for iOS