Many open-source content management systems or CMS ( web applications) exist. The most popular CMS is WordPress, Joomla!, and Drupal.WordPress is by far the most popular CMS, and 26.9% of all websites on the web are using it now. The second and third are Joomla! 2.9% and Drupal 4.8%, while the rest use other CMS and pure HTML websites.
A CMS is a web application that allows website designers and developers to design and build websites. In addition, it will enable the end users to maintain and update their web pages with a minimum understanding of the technical part, such as HTML 5 or CSS 3 and web image processing.






