Short for
General Public License, the
license that accompanies some
open source software that details how the software and its accompany
source code can be freely copied, distributed and modified. The most widespread use of
GPL is in reference to the
GNU GPL, which is commonly abbreviated simply as
GPL when it is understood that the term refers to the GNU GPL. One of the basic tenets of the GPL is that anyone who acquires the material must make it available to anyone else under the same licensing agreement.
The GPL does not cover activities other than the copying, distributing and modifying of the source code.
A GPL is also referred to as a copyleft, in contrast to a copyright that identifies the proprietary rights of material.