Paolo recommended Aurelia. 2 days ago
Data binding + templating solution for web applications written in CoffeeScript.
Marko Widgets extends the Marko templating engine to provide a simple and efficient mechanism for binding behavior to UI components rendered on either the server or in the browse...
Open source alternative to KendoUI and ExtJS. W2UI is a set of widgets for building desktop-like web applications with large data.
Allows easily create desktop-like gui for web applications. It has many built in widgets like tree views, calendars, etc.
A framework for creating ambitious web applications.
Smalltalk on the web.
AngularJS lets you write client-side web applications as if you had a smarter browser.