JavaScript libraries
Touch enabled jQuery plugin that lets you create beautiful responsive carousel slider

JavaScript libraries
jQuery The Write Less Do More JavaScript Library

JavaScript libraries
jQuery UI is a curated set of user interface interactions effects widgets and themes built on top of the jQuery JavaScript Library Whether you re building highly interactive web applications or you just need to add a date picker to a form control jQuery UI is the perfect choice

Tag managers
Google Tag Manager helps make website tag management simple with tools solutions that allow small businesses to deploy and edit tags all in one place

Authentication
Documentation for developers on how to log users into your app or website with Facebook Login

Live chat
www tawk to is 100 Free Live Chat Software to monitor and chat with visitors on your website or from a free customizable page

N A

Since 1983 developing the free Unix style operating system GNU so that computer users can have the freedom to share and improve the software they use