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The Free Software Definition
Free Software Foundation policy document defining free software
The Free Software Definition
The Free Software Definition is a policy document written by Richard Stallman and published by the Free Software Foundation (FSF). For those who accept the authority of the FSF, it defines free software as software that grants users the freedom to use, study, share, and modify the software. The term "free" is used in the sense of "free speech", not "free of charge". The earliest known publication of the definition appeared in the February 1986 edition of the now-discontinued GNU's Bulletin published by the FSF. Since 1996, the official version of the document has been maintained in the philosophy section of the GNU Project website. As of March 2025, the definition had seen 27 major revisions since it was originally published online and it had been translated into 65 languages. The FSF also publishes a list of licenses that meets this definition.
Open boosters, collect cards and trade them. Free to play.
Play for free