Vanilla JavaScript Plugin

dragNdrop  

Easily add drag and drop functionality to DOM elements.

Plugin Website  Demo

Related plugins

dragula  

Drag and drop so simple it hurts. Sort or move items in a list.

DropzoneJS  

An open source library that provides drag’n’drop file uploads with image previews. Requires IE 10+.

FileDrop.js 2  

Feature rich cross-browser HTML5 AJAX file uploader. Drag & drop support and iframe fallback for older browsers.