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Free and open-source software licenses

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GNU Free Documentation License
copyleft license primarily for free software documentation
GNU General Public License
series of free software licenses
copyleft
265px|thumb|alt=Capital letter C flipped around its vertical axis, surrounded by a single line forming a circle.|Copyleft symbol
MIT License
permissive free software license
BSD licenses
type of free software license, imposing minimal restrictions on the use and distribution of covered software.
Apache License
free software license scheme developed by the Apache Software Foundation
GNU Lesser General Public License
free software license scheme based on GPL that allows a piece of software to be used in proprietary software
Mozilla Public License
permissive free software license scheme developed by the Mozilla organization
Q1131681
free software license based on the AGPLv1 and GPLv3
free license
type of license used for open content or open software
WTFPL
The WTFPL is a permissive free software license. As a public domain like license, the WTFPL is essentially the same as dedication to the public domain. It allows redistribution and modification of the work under any terms. The name is an abbreviation of Do What The Fuck You Want To Public License.
Free Art License
type of free content license
Debian Free Software Guidelines
requirements for software to be part of the Debian system
free software license
license by which a software package can be defined as free software
SIL Open Font License
free license
ISC license
permissive free software license originally published by the Internet Systems Consortium (ISC)
Eclipse Public License
free software license similar to the Common Public License
The Free Software Definition
Free Software Foundation document defining free (libre) software
PHP License
software license under which the PHP scripting language is released
open-source license
license for computer software and other products that allows the source code, blueprint or design to be used, modified and/or shared under defined terms and conditions
Common Development and Distribution License
free and open-source software license
zlib License
permissive free software license
Artistic License
series of free software licenses
permissive free software license
free software license with minimal requirements about how the software can be redistributed
Apple Public Source License
software license
European Union Public Licence
free software license
CeCILL
CeCILL (from CEA CNRS INRIA Logiciel Libre) is a free software license adapted to both international and French legal matters, in the spirit of and retaining compatibility with the GNU General Public License (GPL).
Common Public License
free-software license
license proliferation
creation of many new software licenses
IBM Public License
free software license
GNAT Modified General Public License
partially modified GPL to account for Ada generic instantiation
Academic Free License
permissive free software license
Q Public License
software license
LaTeX Project Public License
free software license
Sun Public License
software license on certain open-source software from Sun Microsystems
Netscape Public License
free software license scheme
comparison of free and open-source software licenses
Wikimedia list article
Open Software License
free software license
Python License
Software license of Python 1.6 and 2.0
Ruby License
free software license, compatible with the GPL via an explicit dual-licensing clause
Adaptive Public License
Open Source license from the University of Victoria, Canada
W3C Software License
free software license by W3C
GPL font exception
exception to the free software license when dealing with fonts
University of Illinois/NCSA Open Source License
lax permissive free software license
4-clause BSD License
permissive free software license