Free Software and the GNU Operating System

The Free Software Foundation (FSF) is a 501(c)3 donor supported charity founded in 1985 and based in Boston, MA, USA. The FSF has a worldwide mission to promote computer user freedom and to defend the rights of all free software users.

What is free software and why is it so important for society?

Free software is software that gives you the user the freedom to share, study and modify it. We call this free software because the user is free.

To use free software is to make a political and ethical choice asserting the right to learn, and share what we learn with others. Free software has become the foundation of a learning society where we share our knowledge in a way that others can build upon and enjoy.