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Azul Box vs yt-dlp: catalog facts
Azul Box	yt-dlp
Free Free and open source under the GPL-3.0.	Free Released into the public domain under the Unlicense; there is nothing to buy.
Linux	Windows, macOS, Linux, Command line
Graphical front end for yt-dlp and ffmpeg MusicBrainz metadata for downloaded music	Supports thousands of sites, listed in the project’s own supportedsites page Fine-grained format selection, subtitle, thumbnail and metadata embedding
Linux only Small single-developer project	Command line only; the graphical tools around it are separate projects Merging separate video and audio streams needs FFmpeg installed
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0-only	License: Unlicense
No account needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked September 20, 2026

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