H5F
A JavaScript library that allows you to use the HTML5 Forms chapters new field input types, attributes and constraint validation API in non-supporting browsers.
Core Lib
A port of the Ruby 1.9.3 corelib to coffeescript/javascript/node that conforms to rubyspec.org.
Socialite
Socialite provides a very easy way to implement and activate a plethora of social sharing buttons.
Chart.js
Simple HTML5 Charts using the <canvas> tag
Create
Midgard Create, a generic web editing interface for any CMS
Lunr.js
A bit like Solr, but much smaller and not as bright
Weld
Template antimatter for Node.js (Browsers too!)
Intro.js
A better way for new feature introduction and step-by-step users guide for your website and project.
I18next
Internationalisation (i18n) with javascript the easy way (incl. jquery plugin)
Elements
E+lements is a minimal DOM Library for the prime framework.
Prime
an OOP javascript library for node.js and the browsers
jQuery jKit
A very easy to use, cross platform, jQuery based UI toolkit, that's still small in size, has the features you need, and doesn't get in your way of doing things!
Gif.js
JavaScript GIF encoding library
jQuery Validation
jQuery Validation Plugin
Speakingurl
Generate of so called "static" or "nice-looking" or "slug" or "SpeakingURL" from a string.
Unveil
A very lightweight jQuery plugin to lazy load images
React
React is a JavaScript library for building user interfaces.