OpenSSL is a software library for applications that secure communications over computer networks against eavesdropping or need to identify the party at the other end.
Bitbucket is a web-based version control repository hosting service for source code and development projects that use either Mercurial or Git revision control systems.
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.
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.