Joomla! is a free and open-source content management system (CMS) for publishing web content. Over the years Joomla! has won several awards. It is built on a model–view–controller web application framework that can be used independently of the CMS that allows you to build powerful online applications.

How many user groups does Joomla have by default?

four There are four access levels that are included in Joomla by default: Guest, Public, Registered and Special. You can view these by going to the User Manager in the administration area (the back end) of your site.