Zoom

mlens is a magnifying glass jQuery plugin. And one can call mlens on a bunch of images with the same class by calling it directly on the class, each image will have its own instance of mlens.    

Elevate Zoom is a jQuery image zoom plugin.   Elevate Zoom - Features: Fully Customisable Coloured Tints Fancybox Gallery Support Variable zoom on mouse scroll External Controls Window Zoom, Lens Zoom and Inner Zoom Free to use under MIT and GPL Licenses    

Panzoom is a progressive plugin to create panning and zooming functionality for an element. Panzoom supports the same browsers as jQuery 2.0 and can be used with jQuery 1.9.0+ or jQuery 2.0+.   Rather than setting width and height on an image tag, Panzoom uses CSS transforms and matrix functions to take advantage of hardware/GPU acceleration in the browser, which means the element can be anything: an image, a video, an iframe, a canvas, text, WHATEVER. IE<=8 is not supported, but this plug

SergeLand Image Zoomer is a jQuery plugin for zooming images with stylish and smooth magnifying glass effects.   SergeLand Image Zoomer - Features: Supports all modern browsers Smoothness of the animation in the browser IE8 Easy organization Galleries Expanded functionality with the ability to fine-tune    

ion.zoom is an easy image lightbox jQuery plugin for small galleries. Allow to zoom images at place.   ion.zoom - Features: Supports keyboard controls with ESC, LEFT and RIGHT button. Supports multiple independently operating galleries in one page. Crossbrowser: Google Chrome, Mozilla Firefox, Opera, Safari, IE(8.0+). Works on touch screen devices (iPhone, iPad, etc.).    

Smoothproducts is a simple, lightweight and responsive jQuery product image viewer. Smoothproducts - Features: Lightweight script Animates to different image heights  Thumbnail, normal, and large views Responsive image sizes  Indicator for thumbnail currently open    

Zoomerang.js is a drop-in library that allows your users to zoom in on (almost) any element on your existing page. No setup, arbitrary styling. And it works even if you resize or scroll your page.    

Mosaiqy is a jQuery plugin to organize and show image thumbnails and zoom, easy to integrate also with Flickr, Instagram, Panoramio and other.  Thumbnails are arranged in a grid and each row and column could be randomically moved, sliding in every direction and showing other thumbnails available. Image data is described as a regular JSON object.  And all expensive animations are taken over by your GPU on recent browsers using CSS3 transitions, minimizing the CPU overhead.     

Picbox is a lightweight javascript image viewer based on the excellent Slimbox by Christophe Beyls, and available using either the Mootools or jQuery frameworks. It features automatic resizing and zooming of large images, allowing them to fit in the browser or be viewed at full size.