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

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