Dropzone.js : DropzoneJS is an open source library that provides drag'n'drop file uploads with image previews.
Timeline : Beautifully crafted timelines that are easy, and intuitive to use.
JavascriptOO : Every javascript project you should be looking into.
With examples, categories, install commands, CDN links, project and author stats, and more.
stream.js is a tiny stand-alone Javascript library that unlocks a new data structure for you: streams.
