Tarsnap - Online backups for the truly paranoid

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Readable source, but not "open source"

The Tarsnap client source code is available so that you can see exactly how your data is protected; however, it is not distributed under an Open Source license.

We invite you to review the client source code at github or the latest source tarball release.

Open Source Code Contributions

While the Tarsnap code itself has not been released under an open source license, some of the "reusable components" have been published separately under a BSD license:

In addition to these, Tarsnap uses open source code and has a policy of contributing patches back to projects whenever possible:

Open Source Financial Contributions

Tarsnap has a policy of contributing each year an amount equal to its gross profits for the month of December to support open source software. Sponsorship recipients to date include: