Compare software

Parabolic vs Allavsoft: catalog facts
Parabolic	Allavsoft
Free Free and open source under the MIT licence.	Paid Free trial; the full version was listed at $19.99, down from $29.99.
Windows, macOS, Linux, Browser extension	Windows, macOS
A real desktop interface for yt-dlp, covering hundreds of supported sites Downloads in MP4, WebM, MP3, Opus, FLAC and WAV	Batch downloads of video, music and subtitles Converts to many audio and video formats
The authors note that content may be DMCA protected and disclaim responsibility for unlawful use It inherits yt-dlp's breakages when a site changes	Paid after the trial Closed source
Downloadable app, Browser extension	Downloadable app
Open source	Closed source
License: MIT	License not stated
No account needed	Not stated if an account is needed
Needs internet	Not stated if it works offline
Official website Full listing and sources Checked September 21, 2026	Official website Full listing and sources Checked October 1, 2026

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