Mountain Duck 5.3.1 + [ Latest Version 2026 ]

Mountain Duck is a cloud-storage and server-management application developed by the creators of Cyberduck. It allows users to connect remote servers and online storage services directly to Windows File Explorer or macOS Finder. The cloud storage appears like a normal drive or folder on the computer.  

The main purpose of Mountain Duck is to make cloud files easier to access. Users may need to open a website or a separate file-transfer program to manage files stored online. They can work with remote files in the same way as local documents. A user can open a document from Google Drive, edit it in Microsoft Word and save the changes back to the cloud.

Download Mountain Duck 2026 supports many popular storage services and network protocols. These include Google Drive, Dropbox, Microsoft OneDrive, SharePoint, Box, Amazon S3, Google Cloud Storage, Microsoft Azure, Backblaze B2 and OpenStack Swift. It can also connect to FTP, secure FTP, SFTP, WebDAV and SMB servers. This wide support makes the application useful for home users, website developers, businesses and IT professionals.

Users can view all files stored on a remote server without downloading everything to the computer. Helping save local disk space. Important files and folders can also be marked for offline use. This means they remain available when the internet connection is unavailable. Any changes are uploaded automatically in the background when a connection becomes available again.

Mountain Duck 5 also provides an Integrated Connect Mode. It works with the File Provider system on macOS and Cloud Files technology on Windows. The connected storage behaves like a normal folder, and no additional network mount or device driver is required for this mode.

Users can check connection status, view transfer progress and manage mounted drives. Sync icons show whether a file is online only, available offline, currently synchronising or affected by an error. The activity panel also allows users to monitor or cancel running operations.

Mountain Duck includes file-sharing tools that can create links for selected files. Some supported services allow users to generate temporary links that expire automatically. It also offers file locking to prevent two team members from editing the same document at the same time. Versioning tools can preview and restore earlier versions of files on supported storage systems.

For additional privacy, Mountain Duck supports Cryptomator-compatible vaults. This provides client-side encryption, meaning files can be encrypted before they are uploaded to a server or cloud service.

Mountain Duck is available for Windows and macOS. The current Mountain Duck 5 requires Windows 10 version 1809 or later, or macOS 13 or later. A trial version is available, while continued use requires a registration key.

Features:

1. Cloud storage as a local drive: Mounts remote servers and cloud accounts in Windows File Explorer or macOS Finder.
2. Direct file access: Opens remote files with normal desktop applications without using a separate browser.
3. Easy file management: Users can copy, rename, move, delete and organise cloud files like local files.
4. Multiple connection modes: Offers Online, Smart Synchronization and Integrated connection modes for different needs.
5. Online-only access: Opens files directly from the server without permanently using local storage space.
6. Smart Synchronization: Stores frequently accessed files in a local cache for faster performance.
7. Offline file access: Selected files and folders can remain available without an internet connection.
8. Background uploading: Automatically uploads edited files when the internet connection becomes available again.
9. Integrated mode: Uses Windows Cloud Files and macOS File Provider technologies to display cloud storage as a regular folder.
10. Wide cloud-service support: Connects with Google Drive, Dropbox, OneDrive, SharePoint, Box, Amazon S3 and other services.
11. Server protocol support: Works with FTP, FTPS, SFTP, WebDAV, SMB and several cloud-storage protocols.
12. File status icons: Shows whether a file is online only, available offline, synchronising, paused or affected by an error.
13. Transfer monitoring: Displays the progress of uploads, downloads and synchronisation tasks.
14. Automatic reconnection: Can reopen previously mounted cloud drives after the user signs into the computer.
15. Secure file sharing: Creates temporary or signed links for sharing supported cloud files.
16. File locking: Prevents different team members from editing the same file at the same time.
17. File versioning: Lets users view, open or restore earlier versions of files on supported services.
18. Detailed file information: Displays file size, permissions, metadata, versions and other properties.
19. Client-side encryption: Supports Cryptomator-compatible vaults to encrypt files before uploading them.
20. Improved data privacy: Keeps encrypted content protected even when it is stored on a third-party server.
21. Team collaboration: Provides shared access, locking and version-control features for business teams.
22. Minimal interface: Runs quietly in the Windows system tray or macOS status bar.
23. Cross-platform availability: Available for compatible Windows and macOS computers.
24. Local-space control: Allows users to remove downloaded copies while keeping the original files safely stored online.

Download Mountain Duck (325.3 MB)

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