jQuery Open Carousel is an open and easy to implement carousel display made using jQuery. It supports linking to scroll to any slide, automatic generation of indicator circles, and pretty much any content will work inside of it. Multiple carousels can exist on one page without conflict. Many configuration options can be set dynamically using data attributes.    

blueimp Gallery is a touch-enabled, responsive and customizable image & video gallery, carousel and lightbox, optimized for both mobile and desktop web browsers. It features swipe, mouse and keyboard navigation, transition effects, slideshow functionality, fullscreen support and on-demand content loading and can be extended to display additional content types.    

Conveyor-Belt is a simple but well adjustable slideshow carousel jQuery plugin. There are plenty of configurations available, including transition types, image fits and slideshow speeds.    

jCarousel Lite is a jQuery plugin that carries you on a carousel ride filled with images and HTML content. Put simply, you can navigate images and/or HTML in a carousel-style widget. It is super light weight, at about 2 KB in size, yet very flexible and customizable to fit most of our needs.    

Multiple select is a jQuery plugin to select multiple elements with checkboxes :). Multiple select - Features: Default option allows to show checkbox. Ability to grouping elements. Supports to show multiple items in single row. Select all options. Feature to show placeholder.    

Selectize is the hybrid of a textbox and <select> box. It's jQuery-based and it's useful for tagging, contact lists, country selectors, and so on.   Selectize.js - Features: Skinnable — Comes with LESS stylesheets and shims for Bootstrap 2 and Bootstrap 3 (+ precompiled CSS). Clean API & Code + Extensible — Interface & make addons like a boss with the plugin system. Fully documented on GitHub & inline. Smart Ranking / Multi-Property Searching & Sorting — Want to search

Hide/show password plugin says "life's too short to waste time re-typing passwords".   This plugin lets you easily hide and reveal the contents of a password input field. It's based on a mobile design pattern documented in this post by Luke Wroblewski and seen in apps like Polar.    

Ion.CheckRadio is jQuery plugin for styling checkboxes and radio-buttons with skin support. Ion.CheckRadio - Description: Nice and easy jQuery-plugin for checkbox and radio-buttons customization. With skin support Crossbrowser: Google Chrome, Mozilla Firefox, Opera, Safari, IE(8.0+) Supports touch-devices (iPhone, iPad, etc.). Freely distributed under terms of MIT licence.    

Bootstrap Tags Input is a jQuery plugin providing a Twitter Bootstrap user interface for managing tags.   Bootstrap Tags Input - Features: Objects as tags Not just support for using strings! This means you can use different values for a tag's label and value. Each tag also holds a reference to the object by which it was created, so by calling tagsinput('items') an array of the original items is returned. True multi value Typeahead AngularJS directive included Designed for Bootstrap 2.3.

HeapBox is an HTML selectbox replacement powered by jQuery. It keeps mappings to source selectboxes, which means you can use HeapBox and your POST/GET form requests together.