Cyberduck Mountain Duck CLI

Cryptomator Transparent, client-side encryption support in Cyberduck and Mountain Duck to secure your data on any server or cloud storage. Based on the excellent concepts and work of Cryptomator. Encryption for data at rest prevents unauthorized access regardless of the server or cloud storage infrastructure. Version 6

Documentation

The Cryptomator security architecture in Cyberduck and Mountain Duck has many crucial advantages over other client-side encryption solutions.

Secure and Trustworthy with Open Source
Open source software that 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. You will always have access to your data without the risk of a service shutting down.

Filename Encryption
File and directory names are encrypted, directory structures are obfuscated.

File Content Encryption
Unlike disk encryption utilities, each file is encrypted for its own.

Open Documentation

Client-side Encryption Comparison

Cyberduck

Version 6.0 Version 6

Mountain Duck

Version 2.0 Version 2

Boxcryptor

Version 2.11

EncFS

Version 1.9.1

Interoperable with Cryptomator

✅

✅

❌

❌

Open Source

✅

☑️

❌

✅

No account required

✅

✅

❌

✅

Client side encryption of file contents

✅

✅

✅

✅

Client side encryption of filenames

✅

✅

☑️

❌

Obfuscation of directory tree

✅

✅

❌

❌

No known security flaws

✅

✅

✅

❌

Browse remote files

✅

✅

❌

❌

Access files in Finder (macOS) or Explorer (Windows)

❌

✅

✅

✅

Provider and protocol independent implementation

✅

✅

❌

✅

Installation requires no adminstrator privilege

✅

☑️

❌

❌