Online backups for the truly paranoid

Tarsnap is a secure online backup service for BSD, Linux, OS X, Minix, OpenIndiana, Cygwin, and probably many other UNIX-like operating systems. The Tarsnap client code provides a flexible and powerful command-line interface which can be used directly or via shell scripts.

At the present time, Tarsnap does not support Windows (except via Cygwin) and does not have a graphical user interface.

Start using Tarsnap now!

With five minutes to download and install Tarsnap and $5 for an initial deposit, you can get started with Tarsnap today and stop worrying about whether your data is safe.

Tarsnap pricing

Tarsnap works on a prepaid model based on actual usage.

Storage: 250 picodollars / byte-month
($0.25 / GB-month)
Bandwidth: 250 picodollars / byte
($0.25 / GB)

These prices are based on the actual number of bytes stored and the actual number of bytes of bandwidth used — after compression and data deduplication. This makes Tarsnap ideal for daily backups — many users have hundreds of archives adding up to several terabytes, but pay less than $10/month. [How?]

Tarsnap has no fixed or minimum monthly fees!

Tarsnap is billed only based on actual usage — if you only store a small amount of data, a $5 payment might last you for years.

Tarsnap news

Tarsnap book - March 18, 2015

Tarsnap Mastery, a book from respected technical author Michael W. Lucas about using Tarsnap, is now available in electronic and print formats.

Price cut - April 2, 2014

Effective April 1st, Tarsnap's prices are now 250 picodollars per byte-month of storage and per byte of bandwidth ($0.25 / GB), down from the previous pricing of $0.30/GB.

Bitcoin support - March 27, 2014

Tarsnap now accepts payment in bitcoins. For more details, see the author's blog post.

Older news...