Cyberduck - Mountain Duck

Windows ARM

David Kocher — Thu, 18 Jun 2026 17:39:00 +0200

Mountain Duck 5.3 and later runs natively on Windows 11 for ARM.

Simplify S3 Access with AWS IAM Identity Center

David Kocher — Thu, 18 Jun 2026 12:57:00 +0200

Managing access to Amazon S3 across multiple AWS accounts and users has traditionally required juggling access keys, secret credentials, and complex IAM policies. With support for AWS IAM Identity Center (formerly AWS Single Sign-On) now available in Cyberduck 9.5.0 and Mountain Duck 5.3.0, connecting to S3 has never been easier or more secure. What is

Mountain Duck 5 now available in the Mac App Store

David Kocher — Wed, 26 Nov 2025 12:04:00 +0100

Version 5 is now available in the Mac App Store as a subscription instead of a perpetual license. If you previously purchased Mountain Duck in the Mac App Store, you are eligible to run version 5 with no limitations for up to one year after your purchase date before you are required to purchase a

New Application Icon for Mountain Duck

David Kocher — Thu, 30 Oct 2025 11:47:00 +0100

The new application icon designed by Katharina Hagemann now comes in three variants for macOS 26 Tahoe including Dark and Mono variants. We have decided to make it squircled to fit into the new icon paradigma. The changes will be available in version 5.1. New Status Bar Icons Also the status bar icon in the

Mountain Duck 5

David Kocher — Tue, 19 Aug 2025 11:12:00 +0200

We are thrilled to announce Mountain Duck 5, the premier choice to mount server and cloud storage as a disk in Finder on macOS and the File Explorer on Windows. Version 5 is a solid major upgrade in development for several years with many new features and refinements, including a new Integrated Connect Mode, storage-independent file versioning

Integrated Connect Mode

David Kocher — Tue, 12 Aug 2025 17:02:00 +0200

The new Integrated connect mode in Mountain Duck 5 synchronizes files and folders from a directory on the local disk with support from macOS and Windows. While the Online and Smart Synchronization modes use device driver on Windows and NFS on macOS respectively to mount connections, the Integrated mode uses the tightly integrated File Provider (macOS) and Cloud

Custom Versioning

David Kocher — Tue, 12 Aug 2025 17:01:00 +0200

With Mountain Duck 5, a new storage-independent versioning option is introduced for protocols with no support for file versioning such as FTP/SFTP, WebDAV, and OpenStack Swift. Safeguard against potential file loss with custom versioning. Stash changes to a file in a versioned folder on the server. The custom versioning option can be enabled in the

Mountain Duck 5 Public Beta

David Kocher — Mon, 14 Jul 2025 14:10:00 +0200

Get a sneak peek at upcoming Mountain Duck 5. Features new Integrated connect mode using native APIs on Windows & macOS to integrate in the file explorer. No device driver installation or network mount required. The connect mode allows to sync files like OneDrive on Windows or iCloud Drive on macOS using the cloud storage

Application blocked by Google

David Kocher — Sun, 18 Aug 2024 18:39:00 +0200

This issue has been resolved as of September 11th with the OAuth App Verification completed including the paid CASA assessment. To access Google Drive or Google Cloud Storage using Cyberduck or Mountain Duck we have registered an OAuth 2.0 Client ID with Google that is required to show users a consent screen to access files

Connect to ownCloud Infinite Scale (oCIS) using OAuth

David Kocher — Tue, 02 Apr 2024 09:12:00 +0200

ownCloud Infinite Scale is a user-centric, cloud-native, open source, file sharing and collaboration platform that offers infinite scalability and enables complete digital sovereignty. ownCloud Infinite Scale uses federated authentication with Keycloak as the identity provider by default. To connect using Cyberduck or Mountain Duck. We will provide sample steps to connect to ownCloud Infinite Scale (oCIS)

Connect to S3 with web identity federation

David Kocher — Wed, 18 Oct 2023 16:20:00 +0200

The latest versions of Cyberduck & Mountain Duck now allow to connect to S3 by authenticating with an OpenID Connect (OIDC) identity provider. Connections to S3 with web identity federation use AWS Security Token Service (STS) API to obtain temporary security credentials to authenticate with S3. With web identity federation, you don’t need to (…)

SMB Protocol Support

David Kocher — Wed, 18 Oct 2023 15:14:00 +0200

SMB (Server Message Block) is used to access Windows File Shares or a Samba Linux Server. Cyberduck 8.7.0 adds support to access SMB shares as an light-weight, performant alternative to built-in support in macOS and Windows. Support in Mountain Duck is forthcoming in version 5. Connecting to SMB To connect to your SMB (formerly known

Alternative to the official Dropbox client

David Kocher — Tue, 07 Mar 2023 13:32:00 +0100

Dropbox recently adopted the File Provider API available on macOS to be used as the exclusive way to synchronize files with their own app. The most prominent change from a user perspective is the limitation to store all synchronized files in ~/Library/CloudStorage as required by the File Provider API. Many users with large data sets

Boxcryptor Alternative

David Kocher — Tue, 03 Jan 2023 16:20:00 +0100

Boxcryptor has been acquired by Dropbox and will terminate free accounts as of January 31, 2023. Till then, all users have to look for an alternative. It is not clear how customers with existing contracts are served in the future and no new accounts are accepted. So why not use Mountain Duck with support for the

macOS Ventura

David Kocher — Wed, 02 Nov 2022 18:40:00 +0100

Both Cyberduck and Mountain Duck are fully compatible with macOS Ventura.

Local Cache Size Limitation

David Kocher — Wed, 29 Jun 2022 13:30:00 +0200

Mountain Duck 4.12 introduces new settings to allow cache management — a top requested feature. In Smart Synchronization connect mode all files you work with (e.g. open, save, upload or explicitly choose to keep offline) are saved in the local cache to shorten access times and to make them editable when offline. Depending on the

View and Retrieve Previous File Versions

David Kocher — Wed, 29 Jun 2022 11:42:00 +0200

Cyberduck 8.4 and Mountain Duck 4.12 revamp support to view and retrieve previous versions. Instead of the context menu, previous versions are now listed into the Versions tab of the Info window. Using the buttons in the lower-left corner, you can perform different actions on the selected version: Revert to this version Delete the version

Customizable Notifications

David Kocher — Wed, 29 Jun 2022 11:23:00 +0200

Mountain Duck 4.12 introduces a new Notifications tab in Preferences that allows customizing the notifications to be displayed. In particular it allows fine tuning which notifications to receive when file changes are detected on the server and background synchronization activity.

Box

David Kocher — Thu, 23 Dec 2021 15:49:00 +0100

Cyberduck 8.2 and Mountain Duck 4.10.0 introduce support for accessing Box not only through their FTP or WebDAV gateway but using the native Box API. This should not only improve performance but additionally allow enabling two-factor authentication (2FA) for the account. The new implementation allows to create download and upload shares of files or folders for people who

Embracing Apple silicon

David Kocher — Thu, 25 Nov 2021 16:00:00 +0100

The latest versions of Cyberduck and Mountain Duck now run natively on Apple M1 hardware. Thus we are again shipping a universal binary on macOS since dropping support for PPC and Intel 32-bit (i386) in version 4.4 released in October 2013. This was made possible by the work in Rococoa, JNA and libffi.

Connection Profiles

David Kocher — Wed, 27 Oct 2021 10:26:00 +0200

Cyberduck 8 and Mountain Duck 4.8 introduce a new Profiles preferences tab that allows to install additional connection profiles on demand. This makes it much easier to connect to various hosting and cloud storage service providers without the need to lookup connection details other than credentials. Usage You can either scroll through the list of

Search bookmarks

David Kocher — Tue, 12 Jan 2021 21:29:00 +0100

Mountain Duck 4 introduced labels to assign to bookmarks to allow grouping in folders in the status bar and system tray menu. To further ease the lookup of bookmarks for power users with many connections we have now added a search field in the menu in version 4.4 as known from the Cyberduck browser window.

Connecting to different Sharepoint libraries

David Kocher — Tue, 12 Jan 2021 12:51:00 +0100

Cyberduck 7.8 and Mountain Duck 4.4 improve support for Microsoft Sharepoint connections. The Microsoft SharePoint Site connection profile now allows to connect to specific sites. The regular Microsoft SharePoint connection profile adds support to browse different libraries. Refer to our extended documentation for both OneDrive and SharePoint.

Lock and unlock Cryptomator Vaults

David Kocher — Thu, 10 Sep 2020 12:23:00 +0200

The latest version of Cyberuck and Mountain Duck now allow to manually lock and unlock Cryptomator vaults. This is useful as an alternative to the automated discovery of vaults with configurable in Preferences → Cryptomator → Auto detect and open vault in browser. Cyberduck Mountain Duck

Mountain Duck 4

David Kocher — Thu, 18 Jun 2020 08:43:00 +0200

We are thrilled to announce the release of Mountain Duck 4 – the premier choice to mount server and cloud storage as a disk in Finder on macOS and the File Explorer on Windows. File History with recent changes Version 4 adds a file history with a detailed view of transfers in progress and history of

File History in Mountain Duck 4

Laura Vogt — Wed, 17 Jun 2020 19:24:00 +0200

Mountain Duck 4 adds a file history feature which allows you to see which files were recently edited by you or someone else on the server and which files are currently transferred or pending synchronization. Synchronization Progress The sync progress area of the file history section shows the files that currently get synchronized and the

Review Mountain Duck

David Kocher — Mon, 10 Feb 2020 19:52:00 +0100

Take a couple of minutes to write a short review of your experience with Mountain Duck on Capterra, a site used by business software buyersto find suitable solutions. Capterra is offering $20 to the first 100 users who write a qualifying review. Looking forward to your review!

Access NextCloud from your desktop

Laura Vogt — Tue, 23 Apr 2019 20:00:00 +0200

Update. Cyberduck 7.0.1 and Mountain Duck 3.0.3 now include a connection profile for Nextcloud & ownCloud by default allowing a more straightforward setup. You can now also select files to create a public share link. You are looking for a way to connect to your NextCloud or OwnCloud server without loosing any hard disk space

Mountain Duck 3 as an alternative to the Dropbox client application

Laura Vogt — Tue, 23 Apr 2019 20:00:00 +0200

Mountain Duck 3, combined with any cloud storage, is a viable, more secure solution to synchronize access to documents on multiple computers and users. With Mountain Duck 3 you have the ability to make files and folders accessible for offline usage selectively. This has the advantage that not all data is kept on your local

Sharing Large Files

Laura Vogt — Wed, 30 Jan 2019 20:00:00 +0100

You want to grant one or several people temporary access to large files? Email is not an option and providers offering a web interface are costly, limit the file size or tend to be unreliable. Cyberduck or Mountain Duck in combination with cloud storage providers allows you to share files without relying on a third-party website. Auto

Accessing OneDrive & Sharepoint

Laura Vogt — Wed, 16 Jan 2019 08:00:00 +0100

The number of different possible options for cloud storage provided by services available from Microsoft Office 365 is confusing and merits some further ado. There are two services available from Microsoft – OneDrive and SharePoint – which are hidden in a diversity of different packages. SharePoint is a cloud storage service which is only integrated

🦆 Mountain Duck 3 – Public Beta

David Kocher — Sat, 17 Nov 2018 14:17:00 +0100

We are thrilled to release a public beta of upcoming Mountain Duck 3. The new version is a major milestone in our development timeline. Bridging the gap between online only access with no use of local disk space in Mountain Duck 2 and the new smart synchronization feature in Mountain Duck 3 with much improved

Encrypt your Dropbox

Laura Vogt — Thu, 15 Nov 2018 21:04:00 +0100

Mountain Duck and Cyberduck allow Cryptomator client-side encryption of your data which is missing in Dropbox and all other popular cloud storage solutions. You will find a description of how to use Cryptomator Vaults in Dropbox and access your documents from your computer and mobile in the following sections. Encrypt your data with Mountain Duck and Cyberduck Connect

Connecting using AssumeRole from AWS Security Token Service (STS)

David Kocher — Tue, 07 Aug 2018 11:54:00 +0200

Instead of providing Access Key ID and Secret Access Key, authenticate using temporary credentials from AWS Security Token Service (STS) with optional Multi-Factor Authentication (MFA), making Cyberduck and Mountain Duck more friendly to enterprise deployments. You will need to install the custom connection profile S3 (Credentials from AWS Security Token Service) available from our website.

Support for Office 365 Deutschland

David Kocher — Tue, 07 Aug 2018 11:39:00 +0200

You can now connect to OneDrive in Office 365 Germany in Cyberduck 6.3.0 and Mountain Duck 2.6.0 by installing the Microsoft Office 365 Deutschland OneDrive connection profile from our website.

Skip writing temporary application files to remote volume

David Kocher — Mon, 27 Nov 2017 20:47:00 +0100

We have taken a big leap forward in performance working on remote volumes with Mountain Duck from applications that read and write temporary files when saving documents. Extended attributes and temporary files from applications are no longer saved on the remote volume but in a local temporary cache only. This change in version 2.1 significantly speeds up

Joyent Triton Object Storage

David Kocher — Wed, 15 Nov 2017 09:40:00 +0100

Triton Object Storage (previously named Manta Storage) by Joyent is now supported in Cyberduck 6.3 and Mountain Duck 2.2. Make sure to install the connection profile. Their storage backend implementation is open source. All the pieces required to deploy and operate your own Manta are open source Triton Object storage touts itself as Proven at production

Google Team Drives

David Kocher — Tue, 14 Nov 2017 15:18:00 +0100

We have added support for Google Team Drives in both Cyberduck 6.3 and and Mountain Duck 2.2. Google Team Drives are shared spaces where teams can easily store, search, and access their files. Unlike files in My Drive, files in Team Drive belong to the team instead of an individual. Even if members leave, the files

Mountain Duck 2

David Kocher — Thu, 07 Sep 2017 12:51:00 +0200

We are happy to announce Mountain Duck 2 – featuring support for client-side encrypted Cryptomator interoperable vaults – foolproof client-side encryption for cloud storage mounted on your desktop. Encryption for data at rest prevents unauthorized access regardless of the server or cloud storage infrastructure. You can create secure vaults on any server or cloud storage

We are hiring!

David Kocher — Tue, 09 May 2017 10:20:00 +0200

Help shaping widely used products in an open source development environment! We are looking for an experienced Java enthusiast to join our team as an employee or long term freelancer (work from anywhere). You help us to drive the integration of cloud storage services into Cyberduck & build the next major features for Mountain Duck. Please

Backblaze B2 + Mountain Duck

David Kocher — Wed, 19 Apr 2017 13:11:00 +0200

Mountain Duck 1.9 (free upgrade) now supports mounting Backblaze B2 as a disk on your desktop on both Mac & Windows.

Mountain Duck 1.8

David Kocher — Tue, 18 Apr 2017 11:36:00 +0200

This version brings significant memory savings on macOS. Refer to the full changelog. Important: Due to a bug in version 1.7.1–1.8.2 you will have to manually update to the latest version by downloading the latest version from mountainduck.io.

Interoperability with hubiC

David Kocher — Thu, 03 Nov 2016 15:09:00 +0100

Both Cyberduck and Mountain Duck have support for hubiC (OVH), a low priced OpenStack Swift storage service. We have made available a connection profile that uses OAuth 2 for authentication to connect.

Dropbox

David Kocher — Thu, 20 Oct 2016 17:17:00 +0200

Open files from any Dropbox account without synchronising everything to your local hard disk. Now supported in Cyberduck and Mountain Duck. Refer to our documentation for more information.

Finder and Windows File Explorer Extension for Mountain Duck

David Kocher — Wed, 17 Aug 2016 17:56:00 +0200

Mountain Duck now ships with a Finder Extension for Mac and a File Explorer Extension on Windows. This allows us to have a context menu in the file explorer. Currently it includes options to copy URLs of files selected on the mounted remove volume and open a Terminal session to the selected working directory when

Interoperability with Microsoft Office for Mountain Duck

David Kocher — Wed, 17 Aug 2016 12:28:00 +0200

Version 1.5 now allows to open and save Microsoft Office documents from remote volumes mounted with Mountain Duck.

Read-only

David Kocher — Fri, 22 Jul 2016 14:23:00 +0200

Mountain Duck gained the ability to mount remote volumes as read-only and forbids writes to the remote server on the operating system level. This will pose most useful to users mounting productive environments and will want to make sure nothing is written to the server but files are only readable.

Google Drive is back

David Kocher — Mon, 16 May 2016 12:49:00 +0200

Support for Google Drive is coming back in version 5 of Cyberduck. Access your files stored on Google Drive without synching to your desktop. You can give it a try in the latest snapshot build. Update: Support for Google Drive is now also available in Mountain Duck with version 1.4.

The cloud on your desktop

David Kocher — Thu, 11 Feb 2016 16:51:00 +0100

We shipped Mountain Duck for Mac & Windows after fixing tons of issues during our private beta to the Mac App Store and for sale from our website! We are excited to get the first positive reviews from users: (…) The app helps web developers have a less crowded workspace and is sure to make the overall