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cobalt vs Stacher: catalog facts
cobalt	Stacher
Free The open-source software is available without a license fee.	Freemium The yt-dlp GUI is free without limits; optional Stacher Premium supports the project.
Web, Self-hosted	Windows, macOS, Linux
One paste box, no account, no advertising and no bundled installer Can be self-hosted so downloads do not depend on a public instance	Point-and-click access to yt-dlp options Can install and manage yt-dlp and ffmpeg
Supported services vary by instance and change over time Public instances are rate limited	Linux builds target Debian-based distributions Relies on third-party yt-dlp and ffmpeg
Web application, Self-hosted	Downloadable app
Open source	Closed source
License not stated	License not stated
Not stated if an account is needed	No account needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 22, 2026	Official website Full listing and sources Checked September 23, 2026

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