Use.js
An AMD/RequireJS plugin for consuming incompatible JavaScript files.
Onfire.js
onfire.js is a simple events dispatcher subscribe / publish library (< 1kb). async, simple and usefull.
Lmd
LMD: Lazy Module Declaration. Be lazy: lazy load @ lazy init
Pegasus
Load data while still loading other scripts and display data faster in jQuery, Backbone, Angular, ... apps
Autolink Js
Tiny little tool to find URLs in a string of text and hyperlink them
Queen
A platform for running scripts on many browsers
Flow Js
Javascript Library for Multi-step Asynchronous Logic
Webshim
Webshims Lib is a modular capability-based polyfill-loading library
UI Router
The de-facto solution to flexible routing with nested views
Backbone Layout Manager
A layout and template manager for Backbone.js applications.
Fetchival
window.fetch wrapper for writing simple and expressive requests
Sentry
Sentry is a realtime error logging and aggregation platform
Modernizr
Modernizr is a JavaScript library that detects HTML5 and CSS3 features in the user’s browser.
Buster
A powerful suite of automated test tools for JavaScript.
Angular History
A history service for AngularJS. Undo/redo, that sort of thing. Has nothing to do with the "back" button, unless you want it to.
Redux Loop
A port of elm-effects and the Elm Architecture to Redux that allows you to sequence your effects naturally and purely by returning them from your reducers.
History.js
History.js gracefully supports the HTML5 History/State APIs (pushState, replaceState, onPopState) in all browsers. Including continued support for data, titles, replaceState. Supports jQuery, MooTools and Prototype. For HTML5 browsers this means that you can modify the URL directly, without needing to use hashes anymore. For HTML4 browsers it will revert back to using the old onhashchange functionality.