Cube UI is a Vue.js 2.x-based mobile UI component library providing reusable components for building mobile/web applications. It offers a comprehensive set of touch-optimized UI elements including buttons, forms, pickers, popups, drawers, and layout components. The library follows Vue plugin patterns with installable components and supports both declarative template usage and programmatic invocation via a create-api pattern. It includes internationalization support, form validation, and integrates with better-scroll for advanced scrolling components. The repository contains source code, build outputs, documentation, examples, and unit tests.