Content Management System (CMS) is software that runs in your browser. It allows you to create, manage and modify a website and its contents without having any programming knowledge. The content management system provides you with a graphical user interface. In it, you can manage all aspects of your site. You can create and edit content, add images and videos, as well as customize the overall design of the site. WordPress, Magento, and Drupal are some of the most popular CMS currently on the market. In this guide, we will tell you what CMS is as detailed as possible.