CMS stands for Content Management System. It is a software application or a set of related programs that allow users to create, manage, and publish digital content on the web. CMS platforms are commonly used for websites, blogs, and online applications to simplify the process of content creation and management. Popular CMS platforms include WordPress, Joomla, Drupal, and others. The choice of CMS depends on factors such as the type of website, user preferences, scalability requirements, and specific features needed for content management.