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