Navigation menu 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). Start using Tarsnap now! Tarsnap uses a prepaid model based on actual usage: Storage: 250 picodollars / byte-month of encoded data ($0.25 / GB-month) Bandwidth: 250 picodollars / byte of encoded data ($0.25 / GB) "Encoded data" are the actual bytes stored or transmitted after d...