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.
Pickadate.js is a fully responsive and lightweight jQuery dateinput picker or date picker. It is neat, simple and easy to use. You can also use different themes with it, which makes it an exciting tool for web developers.