Cyberduck Icon


Cyberduck is a fairly popular file transfer client for Apple Mac and Microsoft Windows. It supports SFTP, FTP, FTPS, WebDAV, Amazon S3, and OpenStack Swift protocols.

Cyberduck was built by David V. Kocher, Yves Langisch, and iterate GmbH.

Downloading Cyberduck

Cyberduck can be downloaded from

Security Alert

Cyberduck can use public keys for authentication. Many organizations have been found to have massive numbers of unmanaged SSH keys. They pose a major security and compliance risk. More information

Opening SSH tunnels from the external Internet into organizations has also become a common way to circumvent security policies and open backdoors. More information

SSH Servers

OpenSSH is a popular server on Linux and Unix, as it comes preinstalled with the operating system. For Windows server alternatives, see here. For servers for IBM mainframes, see here.