Plex is a client-server media player system and software suite comprising two main components. The Plex Media Server desktop application runs on Windows, macOS and Linux-compatibles including some types of NAS devices. The server desktop application organizes video, audio and photos from a user’s collections and from online services, enabling the players to access and stream the contents. There are also official clients available for mobile devices, smart TVs, and streaming boxes, a web app, and Plex Home Theater (no longer maintained), as well as many third-party alternatives.
Plex sells a premium service called Plex Pass, with features like synchronization with mobile devices, cloud storage integration, metadata and matchings for music, support for multiple users, parental controls, live TV and DVR, trailers and extras and cross-selling offers.
Plex began as a freeware hobby project in December 2007 when developer Elan Feingold created a media center application for his Apple Mac. He decided to port the media player XBMC (now known as Kodi) to Mac OS X. Around the same time, Cayce Ullman and Scott Olechowski—software executives who had recently sold their previous company to Cisco—were also looking to port XBMC to OSX, and noticed Feingold’s progress via XBMC online forums. They contacted him and offered support and help with funding. Feingold, Olechowski and Ullman formed as a team in January 2008, and founded Plex, Inc. in December 2009.
The team released early versions of the port, which they called “OSXBMC”. Their purposes were to bring to the project a complete integration to the Mac.