Mountain Duck

for Windows.

Trial version. Buy a registration key.
Download MSI Installer for corporate environments.
for Mac.

No admin privileges or installation required on Mac OS X.
Trial version. Buy a registration key.

Solid Foundation

Based on the solid open source foundation of Cyberduck, all major protocols are supported to connect to just about any server you want.


A widely tested FTP (File Transfer Protocol) implementation for the best interoperability with support for FTP over secured SSL/TLS connections.


With support for strong ciphers, public key and two factor authentication. Read settings from your existing OpenSSH configuration.


With interoperability for ownCloud,, Sharepoint and BigCommerce and many other WebDAV servers. TLS mutual (two-way) authentication with client certificate.

S3 and Google Cloud Storage

Connect to any Amazon S3 storage region or Google Cloud Storage with support for large file uploads.


Access Microsoft Azure Cloud storage on your desktop.

OpenStack Swift

Connect to Rackspace Cloudfiles or any other OpenStack Swift cloud storage providers.

Google Drive

Access Google Drive without synchronising documents to your local disk.


Access Dropbox without synchronising documents to your local disk. With URL reference files on mounted volume to open Google Docs documents in the web browser.

OneDrive Version 2

Connect OneDrive Personal, OneDrive Business and Sharepoint Online.

Backblaze B2

Mount the low cost cloud storage on your desktop.

Feature & Performance Comparison

We have run set of performance and reliability tests which show our dedication to make Mountain Duck the best available option to mount server and cloud storage as a disk on your desktop.

Compare with Transmit Disk, ExpanDrive & CloudMounter

Cryptomator Vaults Version 2

Cryptomator Transparent client-side encryption using Cryptomator interoperable vaults. Encryption for data at rest prevents unauthorized access regardless of the server or cloud storage infrastructure.

Context Menu & Info Panel

Integration in Finder on macOS & File Explorer on Windows.

Info panel for advanced actions on files. Version 2

Context menu items for files selected on a mounted volume with options to copy URLs.

Finder Context Menu


We have had a long private beta period with intensive testing to make Mountain Duck work well and fast. This is what our private beta testers have been saying.

This weekend I accidentally stumbled on mounting my entire vagrant disk over FTP using Mountain Duck and it’s been jaw-dropping amazing.

Michael Weigle

Thanks so much for the application! It’s really brilliant, definitely will make web development much simpler!

Bobby Dilley

Thanks works like a charm so far!

Bram Hilgersom

All I can say is - it works and I love it, it is simple, small, unobtrusive and hassle-free.

Rok Lipnik

Many thanks, this is a great application. The integration with the finder makes working with FTP servers a lot more seamless. I love it!

Christian Von Alten

I've been using Mountain Duck without issues for weeks now. It's massively useful.

Jason Efstathiou

Ever since I started using the Mountain Duck application I have loved it.

William Andersen Jr.