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scdl vs Allavsoft: catalog facts
scdl	Allavsoft
Free Free and open source.	Paid Free trial; the full version was listed at $19.99, down from $29.99.
Windows, macOS, Linux, Command line	Windows, macOS
Sets ID3 tags on downloaded tracks Builds on yt-dlp	Batch downloads of video, music and subtitles Converts to many audio and video formats
Development is not active Command line only	Paid after the trial Closed source
Downloadable app	Downloadable app
Open source	Closed source
License not stated	License not stated
Not stated if an account is needed	Not stated if an account is 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.