Joomla

Joomla is written in PHP, uses object-oriented programming techniques, simple software design patterns, and stores data in a Structured Query Language (MySQL/MariaDB) database.[3] Joomla includes features such as page caching, RSS feeds, blogs, search, and support for language internationalisation. It is built on a model–view–controller web application framework that can be used independently of the CMS.

There are over 5,000 third-party extensions listed in the Joomla! Extensions Directory.[4]