Duplicacy is a cloud backup tool based on the concept of lock-free de-duplication across multiple computers. All computers being backed up with Duplicacy upload to a single B2 bucket. Any duplicate chunks from any of these computers are only stored once in B2, achieving the highest level of de-duplication. This saves time, bandwidth and storage costs. Duplicacy also offers many modern features such as incremental backup, client-side encryption, easy migration between storage environments, etc. The command line version runs on all major platforms, while the GUI version is available for Windows and macOS.
Duplicity backs up files by producing encrypted tar-format volumes and uploading them to a remote location,
including Backblaze B2. Duplicity ships with many popular Linux distributions including Ubuntu, Debian, and