Duplicati is a backup tool, not a file sync tool. Developed by Kenneth Skovhede & René Stach
License: Open Source
Duplicati is an open-source backup solution that offers flexibility with various storage options and strong encryption, making it ideal for users who prefer a customizable approach. CrashPlan, on the other hand, provides a user-friendly, automated backup service with effective file versioning, but at a cost, making it better suited for users seeking simplicity and reliability in cloud backups.