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SecureFX vs Cyberduck: catalog facts
SecureFX	Cyberduck
Paid Commercial licence, with a free evaluation of every release.	Free Free and open source under GPLv3. The vendor also sells a separate product, Mountain Duck…
Windows, macOS, Linux	Windows, macOS, Command line
Runs on Windows, macOS and Linux Server-to-server site synchronization	FTP, SFTP, WebDAV, SMB, S3, Swift, B2, Azure, OneDrive, Google Drive and Dropbox in one app Reads your existing OpenSSH configuration, with public key and two-factor support
Paid after evaluation Free alternatives such as FileZilla cover basic transfers	No graphical Linux application; Linux gets the CLI only Mounting remote storage as a local drive is a separate paid product, Mountain Duck
Downloadable app	Downloadable app
Closed source	Open source
License not stated	License: GPL-3.0
Not stated if an account is needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked September 20, 2026

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