Can do JS, better, faster, easier.
Full Featured HTML Framework For Building iOS & Android Apps
Impressive totalitarian style Multipurpose Application Server for node.js. All decisions are made. Solutions are scaled. Tools are provided and optimized for high load. Ready for applied development and production.
Core framework: Montage simplifies the development of rich HTML5 applications by providing modular components, real-time two-way data binding, CommonJS dependency management, and many more conveniences. Join us on irc.freenode.net#montage or https://groups.google.com/d/forum/montagejs
MVC framework making it easy to write realtime, collaborative applications that run in both Node.js and browsers
BEM Core Library
Intuitive, fast & composable MVVM for building interactive interfaces.
Reactive Flux built with ImmutableJS data structures. Framework agnostic.
A lightweight responsive framework for the www