jQuery Tourbus
A jQuery tour/walkthrough plugin.
Wijmo Open
Open Source jQuery UI widgets
Golden Layout
The ultimate Javascript layout manager
AutoCompleteJS
AutoCompleteJS Widget
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!
Messi
A simple message plugin for jQuery
Metismenu
A jQuery menu plugin
Gifplayer
Customizable jquery plugin to play and stop animated gifs. Similar to 9gag's. Support for video formats
Joyride
jQuery feature tour plugin.
Ladda
Buttons with built-in loading indicators.
Simptip
A simple CSS tooltip made with Sass
Mixitup
A CSS3 and jQuery Filter & Sort Plugin
Hide Seek
A simple, mobile-friendly, yet customizable quick/live search jQuery plugin.
Draggable.js
Make your DOM elements draggable easily
Avgrund
Avgrund is a jQuery plugin with new modal concept for popups
Upfile
Makes file inputs a pleasure to use with progressive enhancement.
Angularjs Slider
Slider directive for AngularJS. No dependencies and mobile friendly.