Jellyfin is a completely free and open-source multiplatform media center that allows you to manage how you want to enjoy all your audiovisual content. The program is a direct descendant of Emby version 3.5.2, which was the last open source version before moving to proprietary code. It was due to this change, in fact, that Jellyfin was born, with the aim of continuing to provide maximum transparency to its users.
At first glance Jellyfin is an elegant media center, which offers a ton of free and royalty-free content. At your disposal, you will have several movies, TV series and music albums, all of which are royalty free and completely legal. However, you will also be able to collect, store and manage as much extra content as you want, similar to Plex or Emby.
It is very important to note that Jellyfin neither monitors its users' activities and nor stores their information in any database. One of the program's pillars is openness and transparency, and all the information it collects (such as bug reports) is entirely voluntary. Likewise, Jellyfin does not make money from any audiovisual material, so everything it offers is free of charge as well as being royalty-free.
As you play the audiovisual material, you will find quite a few interesting options, all aimed at making your life a lot easier. For example, you can adjust the playback speed, in case you want to make it through a part of a movie or show more quickly. You can also use syncPlay to watch movies online with friends, and even change the aspect ratio of a movie while watching it.
Jellyfin is an excellent media center, which not only offers an outstanding range of features, but also has an elegant and practical interface. As mentioned above, the app is cross-platform, so you can use it on a range of devices and operating systems. Most importantly, it's completely free and open source.
