Cyberduck Mountain Duck CLI

Get Support

  • Windows Choose Preferences → Connection → Log → Show and attach the selected file %AppData%\Cyberduck\mountainduck.log.
  • Mac Choose Preferences → Connection → Log → Show in Finder and attach the selected file system.log.

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User Documentation

Please consult the reference for installation and further usage documentation.

Cyberduck Wiki

Registration Key Recovery

The registration key is sent to you by email automatically after the transaction has been completed. To recover a lost registration key, enter your email address below to look it up.

Open the received registration key with Mountain Duck by double clicking. Make sure the filename of the registration key attached ends with .mountainducklicense.



Requires macOS 10.11 or later. Move the unzipped application bundle Mountain from the Downloads to the /Applications folder on your harddisk. No admin privileges for installation is required.

Mac App Store

Mountain Duck is installed through the Mac App Store in /Applications. You can always reinstall Mountain Duck on any Mac you own from the Mac App Store in  → App Store… → Purchased.

Login Item

You can choose to open Mountain Duck when you login to your computer. Note that the application will not appear in Login Items of the User & Groups system preference pane. The login item is removed, when you quit the application using Quit Mountain Duck.

Login Item

Finder Extension

macOS 10.11 or later required.

Enable the Mountain Duck Finder Extension in System Preferences → Extensions → Finder by selecting the checkbox. This will enable context menu items for files selected on a mounted volume with options to Reload the folder listing and copy & open URLs of files.

Finder Extension

Requires Windows 7 or later. Run the Mountain Duck Installer.exe with administrator privilege to install Mountain Duck. Download MSI Installer for corporate environments. Requires prior installation of ​Microsoft .NET Framework 4.5.2.

Windows Installer

Windows File Explorer Extension

Restart Windows File Explorer or restart your computer after installation. Right click files on a mounted drive will open a menu with items to copy & open URLs of files.