The main function of a content management system (CMS) is to facilitate the creation, management, and modification of digital content across various platforms. A CMS provides users with tools to create and organize content without requiring extensive technical knowledge of programming languages or web development. It allows for collaboration among multiple contributors and provides templates and plugins for customization. The primary goal of a CMS is to enable organizations to maintain an efficient and user-friendly presence on the web, ensuring that content remains current and accessible to audiences.