SnapGallery is a simple jQuery plugin that turns an ugly list of differently sized images into a beautiful, customizable gallery at the snap of your fingers! Simply dump the images onto the page, write one line of javascript and bam! You have yourself a gallery.
imgix
imgix.js is a javascript library that allows you to easily use the imgix API to make images on your site or app responsive to device size and pixel density. imgix.js allows for intuitive use of imgix features such as text formatting, color palette extraction, color adjustments, effects, and watermarking. imgix.js requires an imgix account to use your own images. Sign up at imgix.com
Arnaud Leyder
Magneticmediajs is a library that allows media content (images, videos, maps, HTML & more) to be displayed efficiently and with style
image zooming plugin with a magnifier lens effect
mona alzeer
jquery plugin for image zooming.
jQuery Lazy – Delayed Image and Background Loader
Daniel 'Eisbehr' Kern
The fast and lightweight Lazy plugin for jQuery loads specified images and backgrounds in view after the page itself and speed up your loading time through this. Images outside of the visible area will only be loaded when the user scrolls to them in any direction. This will not only increase the page loading speed, it will even decrease your traffic.
jQuery Unobtrusive Background Image Switcher
Yuriy Davats
jQuery plugin that makes it possible to use many heavier images as full screen background slider or image slider, while minimizing their influence on load times.
Daniel Fernández A.
jQuery PicTip is a plugin that adds handy tooltips to your images, slideshows, sliders and more.
Jonathan M. Piat
Responsive slideshow / gallery / carousel