GNU General Public License

Abstract

The {GNU} General Public License ({GNU} {GPL} or {GPL}) is the most widely used[5] free software license, which guarantees end users (individuals, organizations, companies) the freedoms to use, study, share (copy), and modify the software. Software that ensures that these rights are retained is called free software. The license was originally written by Richard Stallman of the Free Software Foundation ({FSF}) for the {GNU} project.