Serenade.js
Client side MVC framework
Pegasus
Load data while still loading other scripts and display data faster in jQuery, Backbone, Angular, ... apps
Hermes.js
Message and Error logger implementation
Prime
an OOP javascript library for node.js and the browsers
Jade
Jade - robust, elegant, feature rich template engine for nodejs
Thinkjs
Use full ES2015+ features to develop Node.js applications, Support TypeScript.
Lunr.js
A bit like Solr, but much smaller and not as bright
jTypes
jTypes is the most comprehensive and robust JavaScript library for overcoming differential inheritance with prototype-based objects. Its lightweight yet powerful design provides web programmers on any platform or browser the ability to emulate classical inheritance where objects are defined by classes.
Use.js
An AMD/RequireJS plugin for consuming incompatible JavaScript files.
Regular
a living template engine that helping us to create data-driven component.
Onfire.js
onfire.js is a simple events dispatcher subscribe / publish library (< 1kb). async, simple and usefull.
Mask Js
Zen Coding | Markup | Template | HMVC
Lazy Load Xt
Lazy load XT is a jQuery plugin for images, videos and other media
Inject
AMD and CJS dependency management in the browser
Aura
A scalable, event-driven JavaScript architecture for developing widget-based applications. Works with Backbone.js and other frameworks.
101
A modern JS utility library
YUI3
YUI is a free, open source JavaScript and CSS library for building richly interactive web applications.