Joomla! is an award-winning content management system (CMS), which enables you to build websites and powerful online applications. Download and Install Joomla! in your own server or development environment. Hundreds of developers have been improving Joomla! since the first version was released in 2005. This immense effort has made Joomla! very popular, easy to use, stable, and secure. Joomla! has thousands of free extensions and templates allowing you to customize your site to fit your specific needs.