Mountain Duck lets you mount server and cloud storage as a disk in Finder on macOSand the File Explorer on Windows. Open remote files with any application and work like on a local volume.

Smart Synchronization

Ignored Online Selective Sync Sync in Progress On Demand Sync

View all files on your remote storage regardless if synced to your computer. Files are synchronized to your local disk when opened to allow offline usage.

Work Offline

Select files and folders to always keep offline on your computer. Other files are downloaded and cached on demand only and otherwise do not take space on your local disk.

Sync Progress

Changes are uploaded in the background as soon as a connection is available.

Sync

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

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.

FTP

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

SFTP

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

WebDAV

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

OpenStack Swift

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

S3

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

Google Cloud Storage

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

Azure

Access Microsoft Azure Cloud storage on your desktop.

Backblaze B2

Mount the low cost cloud storage on your desktop.

Google Drive

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

Dropbox

Access Dropbox without synchronising documents to your local disk.

OneDrive

Connect OneDrive Personal, OneDrive Business and Sharepoint Online.

Info Panel

Open the Info panel using right-click on a file to set server side metadata, permissions and more. Includes advanced settings for Amazon S3 and Amazon CloudFront.

Select URLs to share files

Copy URLs on a mounted volume to easily share with files with other people.