Is.js
Micro check library
Async
Async utilities for node and the browser
Curl
A small, fast module and resource loader with dependency management. (AMD, CommonJS Modules/1.1, CSS, HTML, etc.)
Node Browserify
browser-side require() the node.js way
Stampit
Create objects from reusable, composable behaviors.
PreloadJS
PreloadJS makes preloading assets & getting aggregate progress events easier in JavaScript. It uses XHR2 when available, and falls back to tag-based loading when not.
Lodash
An alternative to Underscore.js, delivering consistency, customization, performance, and extra features.
Csso
CSS-optimizer
Superagent
Ajax with less suck - (and node.js HTTP client to match)
Vue I18n
:globe_with_meridians: Internationalization plugin for Vue.js
Alertify.js
JavaScript Alert/Notification System
Refluxjs
A simple library for uni-directional dataflow application architecture inspired by ReactJS Flux
Rest
RESTful HTTP client for JavaScript
Backbone React Component
A bit of nifty glue that automatically plugs your Backbone models and collections into your React components, on the browser and server
Grapnel.js
A simple, lightweight library making it easy to create routes or run events based on a specific URL hashtag.
Fast.js
Faster user-land reimplementations for several common builtin native JavaScript functions.
Ng Sweet Alert
:loudspeaker: Sweetalert directive for angular js( angular sweetalert), without writing single javascript code