FreeBSD was founded in 1993 by the coordinators of the unofficial 386BSD patchkit after Bill Jolitz refused to cooperate on a cleaned-up snapshot release. It focused on the i386 platform and became the most widely deployed BSD variant.
Initially based on 386BSD patchkit applied to Net/2, then rebuilt on 4.4BSD-Lite. FreeBSD introduced the Ports Collection (1994), a framework for building and installing third-party software. The project used CVS (later SVN, then Git) and was hosted on its own infrastructure from the beginning.
The FreeBSD project originated in early 1993 as the brainchild of the three coordinators of the unofficial 386BSD patchkit: Nate Williams, Rod Grimes, and Jordan Hubbard. Their original goal was to produce an intermediate snapshot of 386BSD with accumulated patches applied, fixing problems the patchkit mechanism could not solve. When Bill Jolitz withdrew his support for this plan, the three decided to carry on regardless.
On June 19, 1993, the name 'FreeBSD' was chosen, suggested by David Greenman. FreeBSD 1.0 was released in November 1993, based on the 4.3BSD Net/2 tape and components from 386BSD. However, the USL v. BSDi lawsuit forced a migration to the 4.4BSD-Lite codebase in 1994, resulting in FreeBSD 2.0.
Unlike NetBSD's focus on portability, FreeBSD concentrated on optimizing performance for the i386 PC platform, making it popular for internet servers. FreeBSD powered major early internet services including Yahoo, Hotmail, and parts of the early web infrastructure. The project introduced the Ports Collection system for third-party software management, which became a model for other package management approaches.
Name 'FreeBSD' chosen for the project
FreeBSD 1.0 released
FreeBSD 2.0 released on 4.4BSD-Lite base
DragonFly BSD forked from FreeBSD 4.8
FreeBSD became the most commercially successful BSD variant, powering Netflix, WhatsApp, and the PlayStation operating system (Orbis OS). Its network stack was widely regarded as superior to Linux's for years. The ZFS and jails features became influential in the broader Unix ecosystem. FreeBSD spawned numerous derivatives including DragonFly BSD and served as the base for macOS's Darwin kernel.