Vegas
Vegas is a jQuery plugin to add beautiful fullscreen backgrounds to your webpages. It even allows Slideshows.
Siema
Siema - Lightweight and simple carousel in pure JavaScript
Magnific Popup
Light and responsive lightbox plugin with focus on performance.
Elastislide
Elastislide is a responsive image carousel that will adapt fluidly in a layout. It is a jQuery plugin that can be laid out horizontally or vertically with a pre-defined minimum number of shown images
Liquidfun
2D physics engine for games
Colorbox
A light-weight, customizable lightbox plugin for jQuery
Img to Ascii
A JavaScript implementation of a image to Ascii code
Photoset Grid
A simple jQuery plugin to arrange images into a flexible grid, based on Tumblr's photoset feature.
Flux Slider
CSS3 Animation based image transitions
Foresight.js
Foresight.js gives webpages the ability to tell if the user's device is capable of viewing high-resolution images (such as the 3rd generation iPad) before the image is requested from the server. Additionally, it judges if the user's device currently has a fast enough network connection for high-resolution images. Depending on device display and network connectivity, foresight.js will request the appropriate image for the webpage.
Breathing Halftone
Images go whoa with lots of floaty dots
Kinetic Js
KineticJS is an HTML5 Canvas JavaScript library that extends the 2D context by enabling canvas interactivity for desktop and mobile applications.
Featherlight
Featherlight is a very lightweight jQuery lightbox plugin. It's simple yet flexible and easy to use. Featherlight has minimal css and uses no inline styles, everything is name-spaced, it's completely customizable via config object and offers image, ajax and iframe support out of the box. Featherlights small footprint weights about 4kB – in total.
Obelisk.js
JavaScript Engine for Building Isometric Pixel Element with HTML5 Canvas
Chocolat
Chocolat : Responsive jQuery Lightbox Plugin
Comic.js
Cartoon style drawing for HTML5 Canvas & Raphael.js & D3.js & SVG.js
jQuery Backstretch
Backstretch is a simple jQuery plugin that allows you to add a dynamically-resized, slideshow-capable background image to any page or element. The image will stretch to fit the page/element, and will automatically resize as the window/element size changes.