Drupal is a free and open source content management system (CMS) that provides back end framework for more than 2 percent of the websites online worldwide. It offers a range of standards features including easy content authoring, reliable performance, and excellent security. Drupal is a flexible tool which utilizes modularity as one of its core principles. The modules expand Drupal’s functionality, and thousands of add-ons extend its digital framework abilities. The Drupal community has more than 1 million users who continue to push the software forward.