Joomla! is one of the most powerful open source content management systems available. It is used all over the world for everything from simple Web sites to complex corporate applications. By keeping things as simple as possible without sacrificing features, Joomla! allows non-technical people to have complete control over their Web sites without having to pay exorbitant amounts for closed, proprietary software. (The name Joomla! is a phonetic spelling of the Swahili word "Jumla," which means "all together" or "as a whole.")

Additional annual license purchase of $20 is required to use Joomla.