FreeBSD is a free, open source operating system derived from BSD, the Unix variant developed at the University of California, Berkeley. A large community develops it, and according to the project it supports desktop, server, appliance and embedded environments, with more than 37,000 ported libraries and applications. You install FreeBSD on your own hardware or virtual machines; no vendor cloud service is involved. The project publishes production, legacy and development releases.
The legal entity behind the project is the FreeBSD Foundation, a US-based 501(c)(3) non-profit in Boulder, Colorado, funded by individual and corporate donations. The software is released under a BSD-style open source licence that lets vendors decide how much of their local changes to contribute back. Because the source code is public and the system runs entirely on your own infrastructure, no vendor processes your data. The Foundation's US seat matters mainly for the project's own contracts and donations. Organisations can inspect the source, build on it and choose their own support provider.