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YDL-UI vs Parabolic: catalog facts
YDL-UI	Parabolic
Free Free and open source under the MIT licence.	Free Free and open source under the MIT licence.
Windows	Windows, macOS, Linux, Browser extension
No command line needed to use youtube-dl Bundles youtube-dl and ffmpeg	A real desktop interface for yt-dlp, covering hundreds of supported sites Downloads in MP4, WebM, MP3, Opus, FLAC and WAV
Built around youtube-dl rather than the more active yt-dlp Development has been quiet since early 2024	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
Downloadable app	Downloadable app, Browser extension
Open source	Open source
License: MIT	License: MIT
Not stated if an account is needed	No account needed
Not stated if it works offline	Needs internet
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked September 21, 2026

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