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Azul Box vs OnionMedia X: catalog facts
Azul Box	OnionMedia X
Free Free and open source under the GPL-3.0.	Free Free and open source under the AGPL-3.0 licence.
Linux	Linux
Graphical front end for yt-dlp and ffmpeg MusicBrainz metadata for downloaded music	Downloading and converting in one app Graphical interface instead of command line
Linux only Small single-developer project	Smaller and younger than the original Windows edition Download support depends on upstream site changes
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0-only	License: AGPL-3.0-only
No account needed	No account needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked October 1, 2026

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