Gas
Google Analytics on Steroids. A Google Analytics implementation with more power features.
Machina.js
js ex machina - finite state machines in JavaScript
Across Tabs
Easy communication between cross-origin browser tabs
Loglevel
Minimal lightweight logging for JavaScript, adding reliable log level methods to wrap any available console.log methods
Sentry
Sentry is a realtime error logging and aggregation platform
Egjs
Set of UI interactions, effects and utilities components library using jQuery.
Humane.js
A simple, modern, browser notification system
Davis.js
RESTful degradable JavaScript routing using pushState
Bootstrap Ajax
A library for adding declarative ajax functionality to your website
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.
Tock
Timer Object/Class. Kickass!
Knockout Projections
Knockout.js observable arrays get smarter
jStorage
jStorage is a simple key/value database to store data on browser side. As a bonus it is also a local pubsub platform to sync data between tabs/windows
Jsface
Small, fast, elegant, powerful, and cross platform JavaScript OOP library. Support main(), singleton, super call, private, mixins, plugins, AOP and more.
Kefir
A Reactive Programming library for JavaScript
Boiler
Boiler is a utility library that makes every day tasks in JavaScript easier by providing over 115 methods that work on arrays, collections, functions, numbers, objects, and strings.
Jwerty
Awesome handling of keyboard events