MagnigierRentgen is a dead simple jQuery plugin which allows an image to be zoomed with a magnifying glass effect.
jQuery Zoom Plugins
Zoomify is an extremely simple-to-use jQuery image zoom plugin that enables you to display the full size images in a fullscreen, responsive modal popup.
A simple, lightweight, unobtrusive jQuery image zoom plugin for creating a magnifying glass effect to enlarge part of an image.
RictusErectus is a jQuery plugin that enlarges and displays the full-sized image in a fullscreen modal.
jqzoomer is a very lightweight jQuery plugin that provides basic inner zoom functionality on your images on mouse hover.
jqueryZoom.js is a jQuery plugin that creates a magnifying glass effect to show the details of a specific part of your image.
Lighter is a lightweight and fast jQuery plugin that allows you to enlarge the images in a lightbox popup window
zoom.js is a smart jQuery image zoom plugin that enlarges / shrinks your images in place on click, as you seen on Medium.com.
Zoomtoo is a lightweight jQuery plugin that provides inner zoom functionality on your image when the mouse hovers over it.
Image Magnifier is a simple jQuery plugin for creating a magnifying glass effect on your image to provide image inner zoom feature on mouse hover.
panzoom is a jQuery plugin that lets you implement pan and zoom functionality on any images.
zoomIn is a lightweight jQuery plugin to enable mouse-hover inner zoom on any DOM elements (text, image, etc) by using CSS3 transforms.
BZoom is a jQuery plugin lets you create a product viewer with a magnifying glass style image zoom functionality on hover.