Hook.js
Pull to refresh. For the web.
Flipload
Flipping elements and show a loading indicator easily.
jQuery News Ticker
An easy to use, slick and flexible news ticker plugin for jQuery.
Medium Editor
Medium.com WYSIWYG editor clone.
Formatter.js
Format html inputs to match a specified pattern
Faviconx
A tiny javascript library that makes progress bars out of the favicon placeholders.
Gifplayer
Customizable jquery plugin to play and stop animated gifs. Similar to 9gag's. Support for video formats
Tooltipster
A jQuery tooltip plugin
Bootstro.js
Tiny JS library using bootstrap's popovers to help guide your users around your website
Pageguide
An interactive guide for web page elements using jQuery and CSS3
Jquery.payment
A general purpose library for building credit card forms, validating inputs and formatting numbers.
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!
Upfile
Makes file inputs a pleasure to use with progressive enhancement.
Wijmo Open
Open Source jQuery UI widgets
Fartscroll.js
You want fart noises as you scroll? We've got you covered.
Droptiles
Droptiles is a "Windows 8 Start" like Metro-style Web 2.0 Dashboard. It compromises of Live Tiles. Tiles are mini apps that can fetch data from external sources. Clicking on a tile launches the full application.
Sco.js
Javascript extensions for twitter bootstrap