The Free Software Foundation (FSF) is a nonprofit with a worldwide mission to promote computer user freedom and to defend the rights of all free software users.

As our society grows more dependent on computers, the software we run is of critical importance to securing the future of a free society. Free software is about having control over the technology we use in our homes, schools and businesses, where computers work for our individual and communal benefit, not for proprietary software companies or governments who might seek to restrict and monitor us.

The Free Software Foundation is working to secure freedom for computer users by promoting the development and use of free (as in freedom) software and documentation — particularly the GNU operating system — and by campaigning against threats to computer user freedom like Digital Restrictions Management (DRM) and software patents.