Cyberduck Mountain Duck CLI


Mountain Duck 2 released for Mac and Windows with support for secure Cryptomator interoperable vaults

Bern, Sep 07, 2017

Foolproof client-side encryption for cloud storage mounted on your desktop

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 available through the the broad protocol support in Mountain Duck – including Amazon S3, Backblaze B2, Microsoft Azure, Google Drive, Dropbox and OneDrive or any OpenStack Swift, WebDAV or FTP interoperable hosting solution. Additionally you can also connect to your local harddisk and browse Cryptomator Vaults you want to save on your computer.

Secure and Trustworthy

The Cryptomator security architecture has many crucial advantages over other client-side encryption solutions. Cryptomator encrypts file contents and names using AES. The passphrase for the vault is protected against bruteforcing attempts using scrypt. Directory structures get obfuscated. The software is open source thus can be audited independently for security – you can rest assured there are no backdoors and no hidden vulnerabilities. No online service subscription or account required with the risk of a service shutting down.

Interoperable and ready for use with any cloud storage

All vaults either created by Mountain Duck, Cyberduck or mobile apps from Cryptomator for iOS and Android are fully interoperable.

Transparent Encryption

Starting to secure your data is as easy as creating a new Cryptomator vault by selecting New Encrypted Vault in the context menu and providing a passphrase. Uploads and downloads are transparently encrypted and decrypted respectively with no change in your usual workflow required. You can have encrypted vaults and non-encrypted folders reside along on your storage location.

About Cryptomator

Cryptomator is a client-side cloud storage encryption software by the German startup Skymatic. The software encrypts files automatically on a user’s device before they are uploaded to a cloud storage. As Cryptomator is open-source, it solves the issue of trust that many institutions used to have when considering the use of cloud storage solutions. For the combination of transparency and usability, Cryptomator was awarded the CeBIT Innovation Award for Usable Security and Privacy in 2016. The software is available for all major operating systems (Win, Mac, Linux) and on mobile devices (iOS, Android).

About Mountain Duck

Based on the solid open source foundation of Cyberduck, Mountain Duck lets you mount server and cloud storage as a local disk in the on Mac and the File Explorer on Windows.


iterate GmbH
David Kocher
Yves Langisch