FreeBSD is an advanced operating system for x86 compatible (including Pentium® and Athlon), amd64 compatible (including Opteron, Athlon 64, and EM64T), UltraSPARC, IA-64, PC-98 and ARM architectures. It is derived from BSD, the version of UNIX® developed at the University of California, Berkeley. It is developed and maintained by a large team of individuals. Additional platforms are in various stages of development.

PC-BSD has been designed with the “casual” computer user in mind. Installing the system is simply a matter of a few clicks and a few minutes for the installation process to finish. Hardware such as video, sound, network and other devices will be auto-detected and available at the first system startup. Home users will immediately feel comfortable with PC-BSD’s desktop interface, with KDE 3.5 running under the hood. Software installation has also been designed to be as painless as possible, simply double-click and software will be installed.

DesktopBSD aims at being a stable and powerful operating system for desktop users. DesktopBSD combines the stability of FreeBSD, the usability and functionality of KDE and the simplicity of specially developed software to provide a system that’s easy to use and install.

m0n0wall is a project aimed at creating a complete, embedded firewall software package that, when used together with an embedded PC, provides all the important features of commercial firewall boxes (including ease of use) at a fraction of the price (free software). m0n0wall is based on a bare-bones version of FreeBSD, along with a web server, PHP and a few other utilities. The entire system configuration is stored in one single XML text file to keep things transparent. m0n0wall is probably the first UNIX system that has its boot-time configuration done with PHP, rather than the usual shell scripts, and that has the entire system configuration stored in XML format.

pfSense is an open source firewall derived from the m0n0wall operating system platform with radically different goals such as using OpenBSD’s ported Packet Filter, FreeBSD 6.1 ALTQ (HFSC) for excellent packet queueing and finally an integrated package management system for extending the environment with new features.

FreeNAS is a free NAS (Network-Attached Storage) server, supporting: CIFS (samba), FTP, NFS, RSYNC protocols, local user authentication, Software RAID (0,1,5) with a Full WEB configuration interface. FreeNAS takes less than 32MB once installed on Compact Flash, hard drive or USB key. The minimal FreeBSD distribution, Web interface, PHP scripts and documentation are based on M0n0wall.

Freesbie is a LiveCD based on the FreeBSD Operating system, or even easier, a FreeBSD-based operating system that works directly from a CD, without touching your hard drive.

RoFreeSBIE is a Live DVD/CD installable on hark disk. Its goal is to promote FreeBSD and make it an educational tool and a mobile desktop too.

Frenzy is a “portable system administrator toolkit,” LiveCD based on FreeBSD. It generally contains software for hardware tests, file system check, security check and network setup and analysis.

More and more up-to-date information can be found on the FreeBSD systems page.