Apache is a free and open-source cross-platform web server software.
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.
Matomo Analytics is a free and open-source web analytics application, that runs on a PHP/MySQL web-server.
OWL Carousel is an enabled jQuery plugin that lets you create responsive carousel sliders.
TYPO3 is a free and open-source Web content management system written in PHP.