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Musicfetch vs Azul Box: catalog facts
Musicfetch	Azul Box
Free Free and open source under the GPL-3.0 licence.	Free Free and open source under the GPL-3.0.
Linux	Linux
Downloads and tags songs in one step Built on yt-dlp	Graphical front end for yt-dlp and ffmpeg MusicBrainz metadata for downloaded music
Linux only Focused on YouTube as the source	Linux only Small single-developer project
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0-only	License: GPL-3.0-only
No account needed	No account needed
Needs internet	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.