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Azul Box vs Musicfetch: catalog facts
Azul Box	Musicfetch
Free Free and open source under the GPL-3.0.	Free Free and open source under the GPL-3.0 licence.
Linux	Linux
Graphical front end for yt-dlp and ffmpeg MusicBrainz metadata for downloaded music	Downloads and tags songs in one step Built on yt-dlp
Linux only Small single-developer project	Linux only Focused on YouTube as the source
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0-only	License: GPL-3.0-only
No account needed	No account needed
Not stated if it works offline	Needs internet
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.