- A module is one of the smaller extension types, generally used to help with page display. A website administrator can "place" modules in various positions on a web page through the Module Manager in the back end of Joomla.
Through the use of Modules, the front end and the back end of Joomla really come together. Modules can display specific information from the Joomla database in any number of ways and depending on your template, in any number of locations on the page. Some examples of Joomla Modules include Banners, Menus and Contacts.