Bootstrap is a free and open-source CSS framework directed at responsive, mobile-first front-end web development. It contains CSS and JavaScript-based design templates for typography, forms, buttons, navigation, and other interface components.
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.
Lightbox is small javascript library used to overlay images on top of the current page.
Material Design Lite is a library of components for web developers.
ASP.NET is an open-source, server-side web-application framework designed for web development to produce dynamic web pages.
Semantic UI is a front-end development framework, powered by LESS and jQuery.