Cropper.js is a powerful javascript image cropper with cross-browser support and much more features. Also there is a jQuery plugin wrapper for Cropper.js
A tutorial about how to resize and crop images using JavaScript and the HTML5 Canvas element using controls, commonly seen in photo editing applications.
FileAPI is a set of javascript tools for working with files. Multiupload, drag'n'drop and chunked file upload.
Images: crop, resize and auto orientation by EXIF.
imgLiquid is a jQuery plugin to resize images to fit in a container.
Features:
Picbox is a lightweight (around 5KB) javascript image viewer based on the excellent Slimbox, and available using either the jQuery frameworks. It features automatic resizing and zooming of large images, allowing them to fit in the browser or be viewed at full size.
Also Picbox WordPress plugin is now available.
jQuery Picture is a tiny plugin to add support for responsive images to your layouts. It supports both figure elements with some custom data attributes and the new proposed picture format. This plugin will be made redundant when the format is approved and implemented by browsers.
My Thumbnail jQuery plugin creates image thumbnails on client side for multiple images in a page. My Thumbnail help you to generate uniform size images. Of course, the original aspect ratio of the picture is maintained.
If your browser support css3, you can get a best (inner) fit image for your specified thumbnail size. Also, round corner is supported for css3 capable browser.
With NailThumb jQuery plugin create thumbnails easily from high-res images, without any distortion, with one line of code. You can even decide thumbnail dimensions directly from CSS.
Integrates prefectly with any media gallery, even more usefull in dynamic web application when you can face any shape or size.