Joomla is more customizable than WordPress. It has a large developer community, the selection of add-ons is relative, about 7600 . This makes Joomla more relevant if you want capabilities not available in the core software. To define the appearance of a Joomla website, Joomla uses “templates,” a package of files similar to the themes in WordPress. As with the other CMS systems, you can download existing templates or create your own.