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.
- Source code: the client code is available.
- Deduplication: only the unique data between your current files and encrypted archives is uploaded.
Tarsnap runs on UNIX-like operating systems (BSD, Linux, MacOS X, Cygwin, etc).
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)
There are no other fees — Tarsnap has no fixed costs or minimum monthly fees.
Why use Tarsnap?
Consider a typical backup scenario:
- Alice begins a backup, which takes a complete snapshot of her files.
- Tarsnap automatically finds the unique data within her files.
- Alice pays less than $5/month.
- Alice's data is secure.
Latest Tarsnap release
Tarsnap 1.0.38 (July 15, 2017)
Major changes in this version compared to 1.0.37:
- Tarsnap now supports OpenSSL 1.1.
--iso-datesoption, which causes times to be printed in YYYY-MM-DD HH:MM:SS format rather than the traditional unix
--force-resourcesoption to proceed with decryption of a passphrase-encrypted key file even if it is anticipated to use an excessive amount of memory or CPU time. (This may be useful if tarsnap inaccurately estimates the amount of memory your system has available.)
--archive-names <file>option, which reads a list of archive names to operate on when operating in
You can see all of the changes between 1.0.37 and this version in our tarsnap git repository.