Express
Sinatra inspired web development framework for node.js -- insanely fast, flexible, and simple
Cycle Core
A fully reactive JavaScript framework for Human-Computer Interaction
Lovli.js
A boilerplate for developing react+redux applications with rethinkdb/horizon as realtime database and express for the server.
Enyo
A JavaScript application framework emphasizing modularity and encapsulation
Wee
Blueprint for modern web development
Angular.js
AngularJS lets you write client-side web applications as if you had a smarter browser. It lets use good old HTML (or HAML, Jade and friends!) as your template language and lets you extend HTML’s syntax to express your application’s components clearly and succinctly
Flight
A lightweight, component-based JavaScript framework
Loopback
LoopBack makes it easy to build modern applications that require complex integrations.
Aurelia Framework
The aurelia framework brings together all the required core aurelia libraries into a ready-to-go application-building platform.
Montage
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
Mobx
Simple, scalable state management.
Flakes
Flakes is an Admin Template Framework. A combination of CSS Libraries, JavaScript Libraries and Design files that help you build business tools very quickly.
Bem Core
BEM Core Library
Ngx Auth Firebaseui
Angular Material UI component for firebase authentication
Sproutcore
JavaScript Application Framework - JS library only
Radial Menu
A highly customizable radial menu that's very easy to setup.
Inferno
An extremely fast, React-like JavaScript library for building modern user interfaces