Plex is a media server and streaming platform that allows users to organize, manage, and stream their personal media collections, including movies, TV shows, music, and photos, across various devices. By setting up a Plex Media Server on a computer or network-attached storage (NAS), users can catalog their media and access it from anywhere, whether at home or on the go. The platform supports a wide range of file formats and integrates seamlessly with metadata from online databases to enhance the viewing experience.

In addition to self-hosted media, Plex offers a variety of features such as live TV and DVR capabilities, a rich library of free ad-supported content, and Plex Pass, a subscription service that provides premium features like offline access, enhanced music libraries, and early access to new features. Its user-friendly interface and robust functionality make Plex a popular choice for media enthusiasts looking to create a personalized and versatile entertainment hub.