Cyberduck

Testing against real servers: much extended test coverage with Testcontainers

David Kocher — Thu, 05 Nov 2026 13:00:00 +0100

Cyberduck's integration tests now run against disposable containers of over a dozen server implementations, from MinIO and Ceph to Nextcloud, vsftpd and OpenSSH, and have already uncovered bugs that are fixed.

Connect to OpenCloud with OpenID Connect and browse storage spaces

David Kocher — Thu, 05 Nov 2026 12:00:00 +0100

Cyberduck 9.6 and Mountain Duck 5.4.0 connect to OpenCloud and ownCloud Infinite Scale using OpenID Connect and list your personal space, project spaces and shares.

Sign in to Amazon S3 with your AWS Console credentials

David Kocher — Thu, 05 Nov 2026 11:00:00 +0100

Connecting to Amazon S3 no longer requires creating access keys. Cyberduck 9.6 and Mountain Duck 6.0.0 let you sign in with the same credentials you use for the AWS Management Console.

Sign in to Azure Blob Storage with Microsoft Entra ID

David Kocher — Thu, 05 Nov 2026 10:00:00 +0100

Connecting to Azure Blob Storage no longer requires sharing storage account keys. Cyberduck 9.6 supports authentication with Microsoft Entra ID, authorizing access to blob data with Azure role-based access control.

Resist the Squircle Jail

David Kocher — Wed, 08 Jul 2026 09:37:00 +0200

With Cyberduck 9.5 with have adopted the user interface for Liquid Glass, but the application icon with the duck objects tinted colours always remaining yellow and escapes the squircle jail imposed by default on application icons on macOS 26. We posted about this on @cyberduck back in September last year.

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.

Embrace Rounded Corners

David Kocher — Thu, 18 Jun 2026 16:18:00 +0200

Cyberduck 9.5 adopts user interface changes known as Liquid Glass in macOS Tahoe. Besides rounded corners, the update also includes other refinements the list of bookmarks and editing connection details in the bookmark window. Connect Options Controls for unavailable connect options depending on the current protocol selection are hidden but the Open Connection window now

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

Keep previous versions when editing files

David Kocher — Thu, 27 Jun 2024 16:16:00 +0200

Cyberduck 9 adds a new custom file versioning feature for protocols with no native versioning support, such as FTP/SFTP and WebDAV. The feature is added as a security measure to reduce the risk of file loss when editing changes. You can enable the option by default in the Editor tab in Preferences. The versions can

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

🏠 Moving to GitHub

David Kocher — Tue, 30 Nov 2021 15:06:00 +0100

We previously only had mirror repository for Cyberduck on GitHub and managed pull requests for changes on our own Git server and mirrored all changes to a SVN repository which was used to display a timeline of changes in Trac. We are now using the repository on GitHub as the primary source root and accept

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

macOS Monterey

David Kocher — Mon, 25 Oct 2021 15:41:00 +0200

As the latest version of macOS now numbered 12 will arrive later today both Cyberduck and Mountain Duck are fully compatible.

ARM support for Cyberduck CLI

Yves Langisch — Mon, 18 Jan 2021 18:03:00 +0100

Cyberduck CLI is now available for the growing ARM ecosystem. Run the universal file transfer tool on AWS EC2 A1 instance types or Raspberry Pis for example. Both DEB and RPM package types are available in 32bit and 64bit for ARM. The regular installation instructions apply.

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.

Big Sur

David Kocher — Tue, 10 Nov 2020 13:01:00 +0100

We have made some adjustments in version 7.7 of Cyberduck to support the new window appearance introduced in macOS 11. Switching between bookmarks and browser view is now always visible in the toolbar. The bookmark proxy icon is now displayed inline with the other toolbar controls including the bookmark nickname replacing the previous window title.

Restore from Glacier

David Kocher — Thu, 10 Sep 2020 16:28:00 +0200

We have made available a feature in Cyberduck 7.6 and later to restore files from Glacier storage class in S3. You can temporarily restore files from Glacier using File → Restore for files with the storage class set to Glacier. The file will be restored using standard retrieval and expire in 2 days after retrieval. Restoring

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!

Cyberduck 7

Laura Vogt — Wed, 05 Jun 2019 08:00:00 +0200

With Cyberduck 7 we introduce the possibility of a multi-segmented download. Multi-Segmented downloads offer the functionality to download one file over several connections. This has the advantage that some files can be downloaded faster and the download process is less error-prone. In previous versions of Cyberduck, there was only the possibility to run downloads over

Mountain Duck 3

David Kocher — Tue, 30 Apr 2019 10:46:00 +0200

Work Offline with Smart Synchronization Version 3 adds a smart synchronization feature to add offline support. Files are synchronized to the local disk when opened to allow offline usage and changes are uploaded in the background as soon as a connection is available. Dropbox like experience with your preferred on-premise enterprise storage or cloud storage.

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

Dark Mode

David Kocher — Fri, 21 Sep 2018 13:45:00 +0200

Version 6.8 is now available with support for dark mode on macOS Mojave.

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.