Jellyfin

Jellyfin is a free, open-source media server that lets you manage and stream your personal media collection — movies, TV shows, music, photos, and live TV — from any device. It is a fully open-source fork of Emby, with no premium tiers or subscription required.

Jellyfin supports hardware transcoding (Intel, AMD, Nvidia, Raspberry Pi), subtitles, multiple users with parental controls, SyncPlay for watching together, and a rich plugin ecosystem. Clients are available for virtually every platform: Roku, Android TV, Apple TV, iOS, Android, web browsers, Kodi, and more.

Unlike Plex, which has increasingly moved features behind a paid subscription, Jellyfin is entirely free and open-source with no phone-home or cloud requirement. Your media stays on your hardware and is never analyzed by a third party.