Jquery Timeago
Timeago is a jQuery plugin that makes it easy to support automatically updating fuzzy timestamps (e.g. "4 minutes ago").
Rx Js
The Reactive Extensions for JavaScript
Alertify.js
JavaScript Alert/Notification System
Keymaster
A simple micro-library for defining and dispatching keyboard shortcuts. It has no dependencies.
Mousetrap
Simple library for handling keyboard shortcuts in Javascript
Stampit
Create objects from reusable, composable behaviors.
Pusher Js
Pusher Javascript library
Backbone.stickit
Backbone data binding, model binding plugin. The real logic-less templates.
Cloudinary Js
Cloudinary JavaScript library
Libretaxi
LibreTaxi, free and open source Uber/Lyft alternative to connect passengers and drivers.
Q
A tool for making and composing asynchronous promises in JavaScript
Highland
High-level streams library for Node.js and the browser
Lazy.js
Like underscore.js, but lazier
Immer
Create the next immutable state by mutating the current one
P
Peer-to-peer networking with browsers
Async
Async utilities for node and the browser
Fast.js
Faster user-land reimplementations for several common builtin native JavaScript functions.