Tarsnap – Online Backups for the Truly Paranoid

“Tarsnap is a secure, efficient online backup service:

  • Encryption: your data can only be accessed with your personal keys.

We can’t access your data even if we wanted to!

  • Source code: the client code is available.

You don’t need to trust us; you can check the encryption yourself!

  • Deduplication: only the unique data between your current files and encrypted archives is uploaded.

This reduces the bandwidth and storage required, saving you money!

Tarsnap runs on UNIX-like operating systems (BSD, Linux, MacOS X, Cygwin, etc).”