Getting OpenBSD
 CDs/T-shirts/Posters
 Getting Releases
 Installing OpenBSD

Getting Source
 AnonCVS
 CVSync  Web

OpenBSD Resources
 Manuals  FAQ  Patches
 Reporting
 Mailing Lists
 Application Packages
 Books that Help

Supporting OpenBSD
 Direct Donations
 OpenBSD Foundation

The OpenBSD project produces a FREE, multi-platform 4.4BSD-based UNIX-like operating system. Our efforts emphasize portability, standardization, correctness, proactive security and integrated cryptography. As an example of the effect OpenBSD has, the popular OpenSSH software comes from OpenBSD.

OpenBSD is freely available from our FTP/HTTP sites or as a 3 CD set.

The current release is OpenBSD 5.4 which was released Nov 1, 2013. Pre-orders for the upcoming OpenBSD 5.5 release are enabled at our order site.

OpenBSD is developed entirely by volunteers. The project's development environment and developer events are funded through contributions collected by The OpenBSD Foundation. Contributions ensure that OpenBSD will remain a vibrant and free operating system.