Joomla is a free and open-source content management system (CMS) for publishing web content. It is is written in PHP and it enables users to build websites and create potent online applications in an easy way.
Joomla is written in PHP, uses object-oriented programming (OOP) techniques and software design patterns, stores data in a MySQL, MS SQL or PostgreSQL database and includes features such as page caching, RSS feeds, printable versions of pages, news flashes, blogs, polls, search, and support for language internationalization.
On the other hand, CiviCRM is a web-based, open source, customer relationship management software that is specifically designed for the needs of non-profit, non-governmental, and advocacy groups. It is designed to manage information about an organization’s donors, members, event registrants, subscribers, grant application seekers and funders, and case contacts.
CiviCRM can be deployed in conjunction with either Drupal, Joomla or WordPress CMS to track contacts and their relationships to projects and initiatives.