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cadaver vs duck: catalog facts
cadaver	duck
Free Free and open source under the GNU GPL.	Free Free to install through package managers or installers.
Linux, Command line	Windows, macOS, Linux, Command line
FTP-like commands for WebDAV servers Supports locking and namespace operations	Supports FTP, SFTP, WebDAV, S3 and Swift from one tool Access to Cryptomator encrypted vaults
Command line only Unix-focused, with no Windows build mentioned	Command line only; use Cyberduck for a graphical interface
Downloadable app	Downloadable app
Open source	Closed source
License: GPL	License not stated
No account needed	No account needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 24, 2026	Official website Full listing and sources Checked September 24, 2026

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