jQuery is a JavaScript library which is a free, open-source software designed to simplify HTML DOM tree traversal and manipulation, as well as event handling, CSS animation, and Ajax.
Moment.js is a free and open-source JavaScript library that removes the need to use the native JavaScript Date object directly.
Swiper is a JavaScript library that creates modern touch sliders with hardware-accelerated transitions.
Tengine is a web server which is based on the Nginx HTTP server.
Reveal CSS animation as you scroll down a page.