jQuery QR Code
qrcode generation standalone (doesn't depend on external services)
jQuery Knob
Nice, downward compatible, touchable, jQuery dial
Webfontloader
WebFont Loader gives you added control when using linked fonts via @font-face.
Vegas
Vegas is a jQuery plugin to add beautiful fullscreen backgrounds to your webpages. It even allows Slideshows.
Kute.js
KUTE.js is a native Javascript animation engine featuring badass performance, morphSVG, drawSVG, 2D and 3D transforms, SVG transforms, colors, as well as other CSS3 properties or presentation attributes.
Hello.js
A Javascript RESTFUL API library for connecting with OAuth2 services, such as Google+ API, Facebook Graph and Windows Live Connect
Bespoke.js
DIY Presentation Micro-Framework
Tlapse
📷 Create a timelapse of your web development... or just automatically take screenshots of your hard work ;)
Snabbt.js
Fast animations with javascript and CSS transforms
Interact.js
Drag and drop, resizing and multi-touch gestures with inertia and snapping for modern browsers (and also IE8+)
Toolbar
A tooltip style toolbar jQuery plugin
jQuery UI Touch Punch
A duck punch for adding touch events to jQuery UI
Weld
Template antimatter for Node.js (Browsers too!)
Webix
Stable releases of Webix UI - JavaScript library for building mobile and desktop web apps
Typeit
The most versatile JavaScript typewriter effect library on the planet.
Swing
A swipeable cards interface. The swipe-left/swipe-right for yes/no input. As seen in apps like Jelly and Tinder.
Pace
Automatically add a progress bar to your site. #hubspot-open-source