Cryptomator. Transparent client-side encryption
Secure your data on any server or cloud storage to prevent unauthorized access regardless of infrastructure. File and directory names are encrypted, directory structures are obfuscated. Unlike disk encryption utilities, each file is individually encrypted.
Advantages over other encryption
Open Source
Independently audited. No backdoors or hidden vulnerabilities. No online service required.
Filename encryption
File and directory names are encrypted, directory structures are obfuscated.
File content encryption
Unlike disk encryption utilities, each file is individually encrypted.
Client-side encryption comparison
| Cyberduck | Mountain Duck | Boxcryptor | EncFS | |
|---|---|---|---|---|
| Version | 6 | 2 | 2.11 | 1.9.1 |
| Interoperable with Cryptomator |  Yes |
Yes |
 No |
No |
| Open Source | Yes |
 Partial |
No |
Yes |
| No account required | Yes |
Yes |
No |
Yes |
| Client side encryption of file contents | Yes |
Yes |
Yes |
Yes |
| Client side encryption of filenames | Yes |
Yes |
Partial |
No |
| Obfuscation of directory tree | Yes |
Yes |
No |
No |
| No known security flaws | Yes |
Yes |
Yes |
No |
| Browse remote files | Yes |
Yes |
No |
No |
| Access files in Finder (macOS) or Explorer (Windows) | No |
Yes |
Yes |
Yes |
| Provider and protocol independent implementation | Yes |
Yes |
No |
Yes |
| Installation requires no administrator privilege | Yes |
Partial |
No |
No |