Jcrop - the jQuery Image Cropping Plugin

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.

Jcrop - Features:

• Attaches unobtrusively to images or block objects
• Supports aspect ratio locking
• Supports minSize/maxSize setting
• Callbacks for selection done, or while moving
• Keyboard support for nudging selection
• API features to create interactivity, including animation
• Support for CSS styling, now uses LESS
• Touch support for iOS, Android, etc