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Jellyfin Media Player vs Delfin: catalog facts
Jellyfin Media Player	Delfin
Free Free and open source under the GPL.	Free Free and open source under the GPL-3.0 licence.
Windows, macOS, Linux	Linux
libmpv playback with hardware decoding and audio passthrough, unlike a browser Direct plays formats a browser would force the server to transcode	Native GTK4 and Libadwaita interface Streams movies and TV shows from Jellyfin
Requires a Jellyfin server; it is not a general media player The last tagged release is from March 2025	Needs an existing Jellyfin server Linux only
Downloadable app	Downloadable app
Open source	Open source
License: GPL-2.0	License: GPL-3.0
No account needed	Not stated if an account is needed
Needs internet	Needs internet
Official website Full listing and sources Checked September 21, 2026	Official website Full listing and sources Checked October 1, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.