Rambda
Faster alternative to Ramda in just 10kB
jQuery Pjax
pushState + ajax = pjax
Rx Js
The Reactive Extensions for JavaScript
Redux Elm
The Elm Architecture in JavaScript http://salsita.github.io/redux-elm/
Backbone Marionette
Make your Backbone.js apps dance with a composite application architecture!
Almond
A minimal AMD API implementation for use after optimized builds
Fishbone.js
A super lightweight (½kb) JavaScript library with automatic method chaining, automatic context binding, event support and simple inheritance. c-{{{-<
Aurelia Framework
The aurelia framework brings together all the required core aurelia libraries into a ready-to-go application-building platform.
Ractive
Next-generation DOM manipulation
Radio
Dependency-free Chainable Publish/Subscribe Library for Javascript
Batman
Fighting Crime and Kicking Apps
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.
Bacon.js
FRP (functional reactive programming) library for Javascript
Uranium
Universal css-in-js media queries for React Native and React
Q
A tool for making and composing asynchronous promises in JavaScript
Loopback
LoopBack makes it easy to build modern applications that require complex integrations.
Vis
Dynamic, browser-based visualization library