Picture Cut is a jQuery plugin that handles images in a very friendly and simple way, with a beautiful interface based on bootstrap or jQuery UI, has great features like ajax upload, drag image from explorer, image crop and others.
Cropbox is a lightweight and simple jQuery plugin to crop your avatar.
FocusPoint is a jQuery plugin for responsive cropping. Dynamically crop images to fill available space without cutting out the image's subject. Great for full-screen images.
Image Cropper is a jQuery image cropping plugin with preview and some options.
Croppic is an image cropping jQuery plugin that will satisfy your needs and much more.
Images: crop, resize and auto orientation by EXIF.
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.
Jcrop is the quick and easy way to add image cropping functionality to your web application. It combines the ease-of-use of a typical jQuery plugin with a powerful cross-platform DHTML cropping engine that is faithful to familiar desktop graphics applications