Dropzone.js is an open source library that provides drag’n’drop file uploads by simply including a java-script file. It views previews of images and you can register to different events to control how and which files are uploaded.

It supports Chrome 7+, Firefox 4+, IE 10+, Opera 12+ and Safari 5+. For all the other browsers, dropzone provides an oldschool file input fallback. It is released under MIT License.

Requirements: jQuery Framework
Download Link: http://www.dropzonejs.com/
License: MIT License