JS Signals
Custom Event/Messaging system for JavaScript inspired by AS3-Signals
RequireJS
A file and module loader for JavaScript
Backbone Marionette
Make your Backbone.js apps dance with a composite application architecture!
Ractive
Next-generation DOM manipulation
Polished
A lightweight toolset for writing styles in JavaScript ✨
Batman
Fighting Crime and Kicking Apps
Mediator.js
An implementation of the mediator pattern for asynchronous events in Javascript
Skel
A lightweight responsive framework for the www
Tangle
a JavaScript library for reactive documents
Framework7
Full Featured HTML Framework For Building iOS & Android Apps
Modernizr
Modernizr is a JavaScript library that detects HTML5 and CSS3 features in the user’s browser.
Durandal
A cross-device, cross-platform client framework written in JavaScript and designed to make building Single Page Applications (SPAs) easy to create and maintain.
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
YUI3
YUI is a free, open source JavaScript and CSS library for building richly interactive web applications.
Rambda
Faster alternative to Ramda in just 10kB
Ink
An HTML5/CSS3 framework used at SAPO for fast and efficient website design and prototyping
Backbone.stickit
Backbone data binding, model binding plugin. The real logic-less templates.