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|name=Apache License, Version 2.0
 
|name=Apache License, Version 2.0

Revision as of 15:33, 27 September 2013


Apache License, Version 2.0

License URL = http://directory.fsf.org/wiki/License:Apache2.0
GNU License list URL = http://www.fsf.org/licenses/license-list.html#apache2
free software? = Yes
gplv2 compatible? = No
gplv3 compatible? = Yes
patent provision? = Yes
lax = No
permissive = No
copyleft =
copyleft-strong =
copyleft-weak =
copyleft-partial = This is a free software license, compatible with version 3 of the GNU GPL.

Please note that this license is not compatible with GPL version 2, because it has some requirements that are not in the that GPL version. These include certain patent termination and indemnification provisions. The patent termination provision is a good thing, which is why we recommend the Apache 2.0 license for substantial programs over other lax permissive licenses.



Artistic License 2.0

License URL = http://directory.fsf.org/wiki/License:ArtisticLicense2.0
GNU License list URL = http://www.fsf.org/licenses/license-list.html#ArtisticLicense2
free software? = Yes
gplv2 compatible? = Yes
gplv3 compatible? = Yes
patent provision? = No
lax = No
permissive = No
copyleft =
copyleft-strong =
copyleft-weak =
copyleft-partial = This license is a free software license, compatible with the GPL thanks to the relicensing option in section 4(c)(ii).



Clarified Artistic License

License URL = http://gianluca.dellavedova.org/2011/01/03/clarified-artistic-license/
GNU License list URL = http://www.fsf.org/licenses/license-list.html
free software? = Yes
gplv2 compatible? = Yes
gplv3 compatible? = Yes
patent provision? = No
lax = No
permissive = No
copyleft =
copyleft-strong =
copyleft-weak =
copyleft-partial = This license is a free software license, compatible with the GPL. It is the minimal set of changes needed to correct the vagueness of the Artistic License 1.0.



Berkeley Database License

License URL = http://directory.fsf.org/wiki/License:Sleepycat
GNU License list URL = http://www.fsf.org/licenses/license-list.html#BerkeleyDB
free software? = Yes
gplv2 compatible? = Yes
gplv3 compatible? = Yes
patent provision? = No
lax = No
permissive = No
copyleft =
copyleft-strong =
copyleft-weak =
copyleft-partial = This is a free software license, compatible with the GNU GPL.



Boost Software License

License URL = http://directory.fsf.org/wiki/License:Boost1.0
GNU License list URL = http://www.fsf.org/licenses/license-list.html#boost
free software? = Yes
gplv2 compatible? = Yes
gplv3 compatible? = Yes
patent provision? = No
lax = Yes
permissive = Yes
copyleft = Yes
copyleft-strong =
copyleft-weak =
copyleft-partial = This is a lax, permissive non-copyleft free software license, compatible with the GNU GPL.



Modified BSD license

License URL = http://directory.fsf.org/wiki/License:BSD_3Clause
GNU License list URL = http://www.fsf.org/licenses/license-list.html#ModifiedBSD
free software? = Yes
gplv2 compatible? = Yes
gplv3 compatible? = Yes
patent provision? = No
lax = Yes
permissive = Yes
copyleft = Yes
copyleft-strong =
copyleft-weak =
copyleft-partial = This is the original BSD license, modified by removal of the advertising clause. It is a lax, permissive non-copyleft free software license, compatible with the GNU GPL.

This license is sometimes referred to as the 3-clause BSD license.

The modified BSD license is not bad, as lax permissive licenses go, though the Apache 2.0 license is preferable. However, it is risky to recommend use of “the BSD license”, even for special cases such as small programs, because confusion could easily occur and lead to use of the flawed original BSD license. To avoid this risk, you can suggest the X11 license instead. The X11 license and the modified revised BSD license are more or less equivalent.

However, the Apache 2.0 license is better for substantial programs, since it prevents patent treachery.



CC0

License URL = http://directory.fsf.org/wiki/License:CC0
GNU License list URL = http://www.fsf.org/licenses/license-list.html#CC0
free software? =
gplv2 compatible? = Yes
gplv3 compatible? = Yes
patent provision? = No
lax = Yes
permissive = Yes
copyleft =
copyleft-strong =
copyleft-weak =
copyleft-partial = CC0 is a public domain dedication from Creative Commons. A work released under CC0 is dedicated to the public domain to the fullest extent permitted by law. If that is not possible for any reason, CC0 also provides a lax, permissive license as a fallback. Both public domain works and the lax license provided by CC0 are compatible with the GNU GPL.

If you want to release your work to the public domain, we recommend you use CC0



CeCILL version 2

License URL = http://www.cecill.info/licences.en.html
GNU License list URL = http://www.fsf.org/licenses/license-list.html#CeCILL
free software? = Yes
gplv2 compatible? = Yes
gplv3 compatible? = Yes
patent provision? =
lax =
permissive =
copyleft =
copyleft-strong =
copyleft-weak =
copyleft-partial = The CeCILL is a free software license, explicitly compatible with the GNU GPL.
   The text of the CeCILL uses a couple of biased terms that ought to be avoided: “intellectual property” and “protection”; this decision was unfortunate, because reading the license tends to spread the presuppositions of those terms. However, this does not cause any particular problem for the programs released under the CeCILL.
   Section 9.4 of the CeCILL commits the program's developers to certain forms of cooperation with the users, if someone attacks the program with a patent. You might look at that as a problem for the developer; however, if you are sure you would want to cooperate with the users in those ways anyway, then it isn't a problem for you.



The Clear BSD License

License URL = http://directory.fsf.org/wiki/License:ClearBSD
GNU License list URL = http://www.fsf.org/licenses/license-list.html#clearbsd
free software? = Yes
gplv2 compatible? = Yes
gplv3 compatible? = Yes
patent provision? = Yes
lax =
permissive =
copyleft =
copyleft-strong =
copyleft-weak =
copyleft-partial = This is a free software license, compatible with both GPLv2 and GPLv3. It is based on the modified BSD license, and adds a term expressly stating it does not grant you any patent licenses. Because of this, we encourage you to be careful about using software under this license; you should first consider whether the licensor might want to sue you for patent infringement. If the developer is refusing users patent licenses to set up a trap for you, it would be wise to avoid the program.



Cryptix General License

License URL = http://directory.fsf.org/wiki/License:CryptixGL
GNU License list URL = http://www.fsf.org/licenses/license-list.html#CryptixGeneralLicense)
free software? = Yes
gplv2 compatible? = Yes
gplv3 compatible? = Yes
patent provision? =
lax = Yes
permissive = Yes
copyleft = Yes
copyleft-strong =
copyleft-weak =
copyleft-partial = This is a lax, permissive non-copyleft free software license, compatible with the GNU GPL. It is very similar to the X11 license.



License of the ec fonts for LaTeX

License URL = http://directory.fsf.org/wiki/License:LaTeX_ecfonts
GNU License list URL = http://www.fsf.org/licenses/license-list.html#ecfonts
free software? = Yes
gplv2 compatible? =
gplv3 compatible? =
patent provision? =
lax =
permissive =
copyleft =
copyleft-strong =
copyleft-weak =
copyleft-partial = This license covers the European Computer Modern Fonts and Text Companion Fonts, commonly used with LaTeX. Depending on how it is used, it may be free or not. If the package says that some fonts in the package may not be modified, then the package is nonfree. Otherwise the package is free. The original fonts have no restrictions on modification, so they are free.
   Much like the LaTeX Project Public License 1.2, this license requires modified versions of the work to use a name that's different from the name of any prior version. This is acceptable for work meant to be used with LaTeX, since TeX allows you to create filename mappings for your programs, but it's very annoying and could be overly burdensome in other contexts.



eCos license version 2.0

License URL = http://directory.fsf.org/wiki/License:ECos2.0
GNU License list URL = http://www.fsf.org/licenses/license-list.html#eCos2.0
free software? = Yes
gplv2 compatible? = Yes
gplv3 compatible? = Yes
patent provision? =
lax =
permissive =
copyleft =
copyleft-strong =
copyleft-weak =
copyleft-partial = The eCos license version 2.0 is a GPL-compatible free software license. It consists of the GPL, plus an exception allowing linking to software not under the GPL. This license has the same disadvantages as the LGPL.



Educational Community License 2.0

License URL = http://directory.fsf.org/wiki/License:ECL2.0
GNU License list URL = http://www.fsf.org/licenses/license-list.html#ECL2.0
free software? = Yes
gplv2 compatible? = No
gplv3 compatible? = Yes
patent provision? = Yes
lax =
permissive =
copyleft =
copyleft-strong =
copyleft-weak =
copyleft-partial = This is a free software license, and it is compatible with GPLv3. It is based on the Apache License 2.0; the scope of the patent license has changed so that when an organization's employee works on a project, the organization does not have to license all of its patents to recipients. This patent license and the indemnification clause in section 9 make this license incompatible with GPLv2.



Eiffel Forum License, version 2

License URL = http://directory.fsf.org/wiki/License:EFLv2
GNU License list URL = http://www.fsf.org/licenses/license-list.html#Eiffel
free software? = Yes
gplv2 compatible? = Yes
gplv3 compatible? = Yes
patent provision? =
lax =
permissive =
copyleft =
copyleft-strong =
copyleft-weak =
copyleft-partial = This is a free software license, compatible with the GNU GPL. Previous releases of the Eiffel license are not compatible with the GPL.



EU DataGrid Software License

License URL = http://directory.fsf.org/wiki/License:EUDataGrid
GNU License list URL = http://www.fsf.org/licenses/license-list.html#EUDataGrid
free software? = Yes
gplv2 compatible? = Yes
gplv3 compatible? = Yes
patent provision? =
lax = Yes
permissive = Yes
copyleft = Yes
copyleft-strong =
copyleft-weak =
copyleft-partial = This is a lax, permissive non-copyleft free software license, compatible with the GNU GPL.



Expat License

License URL = http://directory.fsf.org/wiki/License:Expat
GNU License list URL = http://www.fsf.org/licenses/license-list.html#Expat
free software? = Yes
gplv2 compatible? = Yes
gplv3 compatible? = Yes
patent provision? =
lax = Yes
permissive = Yes
copyleft = Yes
copyleft-strong =
copyleft-weak =
copyleft-partial = This is a lax, permissive non-copyleft free software license, compatible with the GNU GPL. It is sometimes ambiguously referred to as the MIT License.
   For substantial programs it is better to use the Apache 2.0 license since it blocks patent treachery.



FreeBSD license

License URL = http://directory.fsf.org/wiki?title=License:FreeBSD
GNU License list URL = http://www.fsf.org/licenses/license-list.html#FreeBSD
free software? = Yes
gplv2 compatible? = Yes
gplv3 compatible? = Yes
patent provision? =
lax = Yes
permissive = Yes
copyleft = Yes
copyleft-strong =
copyleft-weak =
copyleft-partial = This is the original BSD license with the advertising clause and another clause removed. (It is also sometimes called the “2-clause BSD license”.) It is a lax, permissive non-copyleft free software license, compatible with the GNU GPL.
   Our comments about the Modified BSD license apply to this license too.



Freetype Project License

License URL = http://directory.fsf.org/wiki/License:FreeType
GNU License list URL = http://www.fsf.org/licenses/license-list.html#freetype
free software? = Yes
gplv2 compatible? = No
gplv3 compatible? = Yes
patent provision? =
lax =
permissive =
copyleft =
copyleft-strong =
copyleft-weak =
copyleft-partial = This is a free software license, and compatible with GPLv3. It has some attribution requirements which make it incompatible with GPLv2.



License of the iMatix Standard Function Library

License URL = http://directory.fsf.org/wiki?title=License:SFL
GNU License list URL = http://www.fsf.org/licenses/license-list.html#iMatix
free software? = Yes
gplv2 compatible? = Yes
gplv3 compatible? = Yes
patent provision? =
lax =
permissive =
copyleft =
copyleft-strong =
copyleft-weak =
copyleft-partial = This is a free software license and is GPL compatible.



Independent JPEG Group License

License URL = http://directory.fsf.org/wiki?title=License:JPEG
GNU License list URL = http://www.fsf.org/licenses/license-list.html#ijg
free software? = Yes
gplv2 compatible? = Yes
gplv3 compatible? = Yes
patent provision? =
lax =
permissive =
copyleft =
copyleft-strong =
copyleft-weak =
copyleft-partial = This is a free software license, and compatible with the GNU GPL. The authors have assured us that developers who document changes as required by the GPL will also comply with the similar requirement in this license.



License of imlib2

License URL = http://directory.fsf.org/wiki/License:Imlib2
GNU License list URL = http://www.fsf.org/licenses/license-list.html#imlib
free software? = Yes
gplv2 compatible? = Yes
gplv3 compatible? = Yes
patent provision? =
lax =
permissive =
copyleft =
copyleft-strong =
copyleft-weak =
copyleft-partial = This is a free software license, and GPL-compatible. The author has explained to us that the GPL's options for providing source all mean the source has been "made available publicly" in their words.



Intel Open Source License

License URL = http://directory.fsf.org/wiki/License:IntelACPI
GNU License list URL = http://www.fsf.org/licenses/license-list.html#intel
free software? = Yes
gplv2 compatible? = Yes
gplv3 compatible? = Yes
patent provision? =
lax =
permissive =
copyleft =
copyleft-strong =
copyleft-weak =
copyleft-partial = This is a free software license, compatible with the GNU GPL.



ISC License

License URL = http://directory.fsf.org/wiki/License:ISC
GNU License list URL = http://www.fsf.org/licenses/license-list.html#ISC
free software? = Yes
gplv2 compatible? = Yes
gplv3 compatible? = Yes
patent provision? =
lax = Yes
permissive = Yes
copyleft =
copyleft-strong =
copyleft-weak =
copyleft-partial = This license is sometimes also known as the OpenBSD License. It is a lax, permissive free software license, and compatible with the GNU GPL.

This license does have an unfortunate wording choice: it provides recipients with "Permission to use, copy, modify, and/or distribute this software…" This is roughly the same language from the license of Pine that the University of Washington later claimed prohibited people from distributing modified versions of the software.

ISC has told us they do not share the University of Washington's interpretation, and we have every reason to believe them. Thus, there's no reason to avoid software released under this license. However, to help make sure this language cannot cause any trouble in the future, we encourage developers to choose a different license for their own works. The Expat License and FreeBSD License are similarly permissive and brief.



Mozilla Public License (MPL) version 2.0

License URL = http://directory.fsf.org/wiki/License:MPLv2.0
GNU License list URL = http://www.fsf.org/licenses/license-list.html#MPL-2.0
free software? = Yes
gplv2 compatible? = Yes
gplv3 compatible? = Yes
patent provision? =
lax =
permissive =
copyleft =
copyleft-strong =
copyleft-weak =
copyleft-partial = This is a free software license. Section 3.3 provides indirect compatibility between this license and the GNU GPL version 2.0, the GNU LGPL version 2.1, the GNU AGPL version 3.0, and all later versions of those licenses. When you receive work under MPL 2.0, you may make a “Larger Work” that combines that work with work under those GNU licenses. When you do, section 3.3 gives you permission to distribute the MPL-covered work under the terms of the same GNU licenses, with one condition: you must make sure that the files that were originally under the MPL are still available under the MPL's terms as well. In other words, when you make a combination this way, the files that were originally under the MPL will be dual licensed under the MPL and the GNU license(s). The end result is that the Larger Work, as a whole, will be covered under the GNU license(s). People who receive that combination from you will have the option to use any files that were originally covered by the MPL under that license's terms, or distribute the Larger Work in whole or in part under the GNU licenses' terms with no further restrictions.

It's important to understand that the condition to distribute files under the MPL's terms only applies to the party that first creates and distributes the Larger Work. If it applied to their recipients as well, it would be a further restriction and incompatible with the GPL and AGPL. That said, when you make contributions to an existing project, we usually recommend that you keep your changes under the same license, even when you're not required to do so. If you receive a work under a GNU license where some files are also under the MPL, you should only remove the MPL from those files when there's a strong reason to justify it.

   Check the license notices on the MPL-covered software before you make a Larger Work this way. Parties who release original work under MPL 2.0 may choose to opt out of this compatibility by including a sentence in the license notices that says that the work is “Incompatible With Secondary Licenses.” Any software that includes this notice is not compatible with the GPL or AGPL.
   Software under previous versions of the MPL can be upgraded to version 2.0, but any software that isn't already available under one of the listed GNU licenses must be marked as Incompatible With Secondary Licenses. This means that software that's only available under previous versions of the MPL is still incompatible with the GPL and AGPL.



NCSA/University of Illinois Open Source License

License URL = http://directory.fsf.org/wiki/License:IllinoisNCSA
GNU License list URL = http://www.fsf.org/licenses/license-list.html#NCSA
free software? = Yes
gplv2 compatible? = Yes
gplv3 compatible? = Yes
patent provision? =
lax = Yes
permissive = Yes
copyleft = Yes
copyleft-strong =
copyleft-weak =
copyleft-partial = This license is based on the terms of the Expat and modified BSD licenses. It is a lax, permissive non-copyleft free software license, compatible with the GNU GPL.



License of Netscape JavaScript

License URL = [ ]
GNU License list URL = http://www.fsf.org/licenses/license-list.html#NetscapeJavaScript)
free software? = Yes
gplv2 compatible? = Yes
gplv3 compatible? = Yes
patent provision? =
lax =
permissive =
copyleft =
copyleft-strong = No
copyleft-weak =
copyleft-partial = This is the disjunction of the Netscape Public License and the GNU GPL. Because of that, it is a free software license, compatible with the GNU GPL, but not a strong copyleft.



OpenLDAP License, Version 2.7

License URL = http://directory.fsf.org/wiki/License:OpenLDAPv2.7
GNU License list URL = http://www.fsf.org/licenses/license-list.html#newOpenLDAP)
free software? = Yes
gplv2 compatible? = Yes
gplv3 compatible? = Yes
patent provision? =
lax =
permissive = Yes
copyleft = Yes
copyleft-strong =
copyleft-weak =
copyleft-partial = This is a permissive non-copyleft free software license that is compatible with the GNU GPL.



License of Perl 5 and below

License URL = [ ]
GNU License list URL = http://www.fsf.org/licenses/license-list.html#PerlLicense
free software? = Yes
gplv2 compatible? = Yes
gplv3 compatible? = Yes
patent provision? =
lax =
permissive =
copyleft =
copyleft-strong =
copyleft-weak =
copyleft-partial = This license is the disjunction of the Artistic License 1.0 and the GNU GPL—in other words, you can choose either of those two licenses. It qualifies as a free software license, but it may not be a real copyleft. It is compatible with the GNU GPL because the GNU GPL is one of the alternatives.

We recommend you use this license for any Perl 4 or Perl 5 package you write, to promote coherence and uniformity in Perl programming. Outside of Perl, we urge you not to use this license; it is better to use just the GNU GPL.



Public Domain

License URL = http://directory.fsf.org/wiki/License:PublicDomain
GNU License list URL = http://www.fsf.org/licenses/license-list.html#PublicDomain
free software? = Yes
gplv2 compatible? = Yes
gplv3 compatible? = Yes
patent provision? =
lax =
permissive =
copyleft =
copyleft-strong =
copyleft-weak =
copyleft-partial = Being in the public domain is not a license; rather, it means the material is not copyrighted and no license is needed. Practically speaking, though, if a work is in the public domain, it might as well have an all-permissive non-copyleft free software license. Public domain material is compatible with the GNU GPL.

If you want to release your work to the public domain, we encourage you to use formal tools to do so. We ask people who make small contributions to GNU to sign a disclaimer form; that's one solution. If you're working on a project that doesn't have formal contribution policies like that, CC0 is a good tool that anyone can use. It formally dedicates your work to the public domain, and provides a fallback license for cases where that is not legally possible.



License of Python 2.0.1, 2.1.1, and newer versions

License URL = http://directory.fsf.org/wiki?title=License:Python2.0.1
GNU License list URL = http://www.fsf.org/licenses/license-list.html#Python
free software? = Yes
gplv2 compatible? = Yes
gplv3 compatible? = Yes
patent provision? =
lax =
permissive =
copyleft =
copyleft-strong =
copyleft-weak =
copyleft-partial = This is a free software license and is compatible with the GNU GPL. Please note, however, that intermediate versions of Python (1.6b1, through 2.0 and 2.1) are under a different license (see below).



License of Python 1.6a2 and earlier versions

License URL = http://directory.fsf.org/wiki?title=License:Python1.6a2
GNU License list URL = http://www.fsf.org/licenses/license-list.html#Python1.6a2
free software? = Yes
gplv2 compatible? = Yes
gplv3 compatible? = Yes
patent provision? =
lax =
permissive =
copyleft =
copyleft-strong =
copyleft-weak =
copyleft-partial = This is a free software license and is compatible with the GNU GPL. Please note, however, that newer versions of Python are under other licenses (see above and below).



License of Ruby

License URL = http://directory.fsf.org/wiki/License:Ruby
GNU License list URL = http://www.fsf.org/licenses/license-list.html#Ruby
free software? = Yes
gplv2 compatible? = Yes
gplv3 compatible? = Yes
patent provision? =
lax =
permissive =
copyleft =
copyleft-strong =
copyleft-weak =
copyleft-partial = This is a free software license, compatible with the GPL via an explicit dual-licensing clause.



SGI Free Software License B, version 2.0

License URL = http://directory.fsf.org/wiki/License:SGIFreeBv2
GNU License list URL = http://www.fsf.org/licenses/license-list.html#SGIFreeB
free software? = Yes
gplv2 compatible? =
gplv3 compatible? =
patent provision? =
lax =
permissive =
copyleft =
copyleft-strong =
copyleft-weak =
copyleft-partial = The SGI Free Software License B version 2.0 is a free software license. It is essentially identical to the X11 License, with an optional alternative way of providing license notices.

Previous versions of the SGI Free Software License B were not free software licenses, despite their name. However, they all included clauses that allow you to upgrade to new versions of the license, if you choose to do so. As a result, if a piece of software was released under any version of the SGI Free License B, you can use it under the terms of this free version.



Standard ML of New Jersey Copyright License

License URL = http://directory.fsf.org/wiki/License:StandardMLofNJ
GNU License list URL = http://www.fsf.org/licenses/license-list.html#StandardMLofNJ
free software? = Yes
gplv2 compatible? = Yes
gplv3 compatible? = Yes
patent provision? =
lax = Yes
permissive = Yes
copyleft = Yes
copyleft-strong =
copyleft-weak =
copyleft-partial = This is a lax, permissive non-copyleft free software license, compatible with the GNU GPL.



Unicode, Inc. License Agreement for Data Files and Software

License URL = http://directory.fsf.org/wiki/License:Unicode
GNU License list URL = http://www.fsf.org/licenses/license-list.html#Unicode
free software? = Yes
gplv2 compatible? = Yes
gplv3 compatible? = Yes
patent provision? =
lax = Yes
permissive = Yes
copyleft =
copyleft-strong =
copyleft-weak =
copyleft-partial = This is a license that Unicode, Inc. has applied to the Unicode Character Database—various data files that developers can use to help implement the Unicode standard in their own programs. It is a lax permissive license, compatible with all versions of the GPL.

If you want to use files covered by this License Agreement in your own software, that shouldn't be any problem, but we recommend that you also include a full copy of its text. Some of the files contain alternative license terms which are nonfree, or no licensing information at all, so including a copy of the License Agreement will help avoid confusion when others want to distribute your software. Of course, you'll also need to follow the conditions in this License Agreement for distributing the files, but those are very straightforward.

Please take care to ensure that the files you are using are covered by this License Agreement. Other files published by Unicode, Inc. are covered by the Unicode Terms of Use, a different, nonfree license that appears on the same page but covers different files. A short explanation at the top of this License Agreement details which files it covers.

Please do not use this License Agreement for your own software. If you want to use a lax permissive license for your project, please use the Expat license for a small program and the Apache 2.0 license for a substantial program. These are far more common, and widely recognized in the free software community.



The Unlicense

License URL = http://directory.fsf.org/wiki/License:TheUnlicense
GNU License list URL = http://www.fsf.org/licenses/license-list.html#Unlicense
free software? = Yes
gplv2 compatible? = Yes
gplv3 compatible? = Yes
patent provision? =
lax = Yes
permissive =
copyleft =
copyleft-strong =
copyleft-weak =
copyleft-partial = The Unlicense is a public domain dedication. A work released under the Unlicense is dedicated to the public domain to the fullest extent permitted by law, and also comes with an additional lax license that helps cover any cases where the dedication is inadequate. Both public domain works and the lax license provided by the Unlicense are compatible with the GNU GPL.

If you want to release your work to the public domain, we recommend you use CC0. CC0 also provides a public domain dedication with a fallback license, and is more thorough and mature than the Unlicense.



License of Vim, Version 6.1 or later

License URL = http://directory.fsf.org/wiki/License:Vim7.2
GNU License list URL = http://www.fsf.org/licenses/license-list.html#Vim
free software? = Yes
gplv2 compatible? = Yes
gplv3 compatible? = Yes
patent provision? =
lax =
permissive =
copyleft =
copyleft-strong =
copyleft-weak =
copyleft-partial = This is a free software license, partially copyleft but not really. It is compatible with the GPL, by an explicit conversion clause.



W3C Software Notice and License

License URL = http://directory.fsf.org/wiki/License:W3C_31Dec2002
GNU License list URL = http://www.fsf.org/licenses/license-list.html#W3C
free software? = Yes
gplv2 compatible? = Yes
gplv3 compatible? = Yes
patent provision? =
lax =
permissive =
copyleft =
copyleft-strong =
copyleft-weak =
copyleft-partial = This is a free software license and is GPL compatible.



License of WebM

License URL = http://directory.fsf.org/wiki/License:WebM
GNU License list URL = http://www.fsf.org/licenses/license-list.html#WebM
free software? = Yes
gplv2 compatible? = Yes
gplv3 compatible? = Yes
patent provision? =
lax =
permissive =
copyleft =
copyleft-strong =
copyleft-weak =
copyleft-partial = Google's WebM implementation is covered by the Modified BSD License. Google also provides a separate patent license (confusingly called an “Additional IP Rights Grant”) for patents that Google owns or controls that are necessarily infringed by their implementation of WebM. GPL-covered software can be distributed in compliance with this license's terms: it allows distributors to exercise all of the rights granted by the GPL, while fulfilling all its conditions. Thus, all of WebM's license is free and GPL-compatible.



WTFPL, Version 2

License URL = http://www.wtfpl.net/txt/copying/
GNU License list URL = http://www.fsf.org/licenses/license-list.html#WTFPL
free software? = Yes
gplv2 compatible? = Yes
gplv3 compatible? = Yes
patent provision? =
lax = Yes
permissive = Yes
copyleft = Yes
copyleft-strong =
copyleft-weak =
copyleft-partial = This is lax permissive non-copyleft free software license, compatible with the GNU GPL.

We do not recommend this license. If you want a lax permissive license for a small program, we recommend the X11 license. A larger program usually ought to be copyleft; but if you are set on using a lax permissive license for one, we recommend the Apache 2.0 license since it protects users from patent treachery.



X11 License

License URL = http://directory.fsf.org/wiki/License:X11
GNU License list URL = http://www.fsf.org/licenses/license-list.html#X11License
free software? = Yes
gplv2 compatible? = Yes
gplv3 compatible? = Yes
patent provision? =
lax = Yes
permissive = Yes
copyleft = Yes
copyleft-strong =
copyleft-weak =
copyleft-partial = This is a lax permissive non-copyleft free software license, compatible with the GNU GPL. Older versions of XFree86 used the same license, and some of the current variants of XFree86 also do. Later versions of XFree86 are distributed under the XFree86 1.1 license.

This license is sometimes called the MIT license, but that term is misleading, since MIT has used many licenses for software.

This is a fine license for a small program. A larger program usually ought to be copyleft; but if you are set on a lax permissive license for one, we recommend the Apache 2.0 license since it protects users from patent treachery.



XFree86 1.1 License

License URL = http://directory.fsf.org/wiki/License:XFree86_1.1
GNU License list URL = http://www.fsf.org/licenses/license-list.html#XFree861.1License
free software? = Yes
gplv2 compatible? = No
gplv3 compatible? = Yes
patent provision? =
lax = Yes
permissive = Yes
copyleft = Yes
copyleft-strong =
copyleft-weak =
copyleft-partial = This is a lax, permissive non-copyleft free software license, compatible with version 3 of the GPL.

Please note that this license is incompatible with version 2 of the GPL, because of its requirements that apply to all documentation in the distribution that contain acknowledgements.

There are currently several variants of XFree86, and only some of them use this license. Some continue to use the X11 license.



License of ZLib

License URL = http://directory.fsf.org/wiki/License:Zlib
GNU License list URL = http://www.fsf.org/licenses/license-list.html#Zlib
free software? = Yes
gplv2 compatible? = Yes
gplv3 compatible? = Yes
patent provision? =
lax =
permissive =
copyleft =
copyleft-strong =
copyleft-weak =
copyleft-partial = This is a free software license, and compatible with the GPL.



Zope Public License, versions 2.0 and 2.1

License URL = http://directory.fsf.org/wiki?title=License:ZopePLv2.1
GNU License list URL = http://www.fsf.org/licenses/license-list.html#Zope2.0
free software? = Yes
gplv2 compatible? = Yes
gplv3 compatible? = Yes
patent provision? =
lax = Yes
permissive = Yes
copyleft = Yes
copyleft-strong =
copyleft-weak =
copyleft-partial = This is a lax, permissive non-copyleft free software license which is compatible with the GNU GPL.



WxWidgets License

License URL = [ ]
GNU License list URL = http://www.fsf.org/licenses/license-list.html#Wx
free software? = Yes
gplv2 compatible? = Yes
gplv3 compatible? = Yes
patent provision? =
lax =
permissive =
copyleft =
copyleft-strong =
copyleft-weak =
copyleft-partial = The WxWidgets license is a GPL-compatible free software license. It consists of the LGPL 2.0 or any later version, plus an additional permission allowing binary distributions that use the library to be licensed under terms of the distributor's choice (including proprietary). Like the LGPL it is a weak copyleft license, so we recommend it only in special circumstances.



Affero General Public License version 1

License URL = http://directory.fsf.org/wiki/License:AGPLv1
GNU License list URL = http://www.fsf.org/licenses/license-list.html#AGPLv1.0
free software? = Yes
gplv2 compatible? = No
gplv3 compatible? = No
patent provision? =
lax =
permissive =
copyleft = No
copyleft-strong =
copyleft-weak =
copyleft-partial = The Affero General Public License is a free software license, copyleft, and incompatible with the GNU GPL. It consists of the GNU GPL version 2, with one additional section that Affero added with FSF approval. The new section, 2(d), covers the distribution of application programs through web services or computer networks.

This license has been succeeded by the GNU Affero General Public License version 3; please use that instead.



Academic Free License, all versions through 3.0

License URL = http://directory.fsf.org/wiki/License:AFLv3
GNU License list URL = http://www.fsf.org/licenses/license-list.html#AcademicFreeLicense
free software? = Yes
gplv2 compatible? = No
gplv3 compatible? = No
patent provision? =
lax =
permissive =
copyleft = Yes
copyleft-strong =
copyleft-weak =
copyleft-partial = The Academic Free License is a free software license, not copyleft, and incompatible with the GNU GPL. Recent versions contain contract clauses similar to the Open Software License, and should be avoided for the same reasons.



Apache License, Version 1.1

License URL = http://directory.fsf.org/wiki/License:Apache1.1
GNU License list URL = http://www.fsf.org/licenses/license-list.html#apache1.1
free software? = Yes
gplv2 compatible? = No
gplv3 compatible? = No
patent provision? =
lax =
permissive = Yes
copyleft = Yes
copyleft-strong =
copyleft-weak =
copyleft-partial = This is a permissive non-copyleft free software license. It has a few requirements that render it incompatible with the GNU GPL, such as strong prohibitions on the use of Apache-related names.



Apache License, Version 1.0

License URL = http://directory.fsf.org/wiki/License:Apache1.0
GNU License list URL = http://www.fsf.org/licenses/license-list.html#apache1
free software? = Yes
gplv2 compatible? = No
gplv3 compatible? = No
patent provision? =
lax = Yes
permissive = Yes
copyleft = Yes
copyleft-strong =
copyleft-weak =
copyleft-partial = This is a lax, permissive non-copyleft free software license with an advertising clause. This creates practical problems like those of the original BSD license, including incompatibility with the GNU GPL.



Apple Public Source License (APSL), version 2

License URL = http://directory.fsf.org/wiki/License:APSLv2.0
GNU License list URL = http://www.fsf.org/licenses/license-list.html#apsl2
free software? = Yes
gplv2 compatible? = No
gplv3 compatible? = No
patent provision? =
lax =
permissive =
copyleft =
copyleft-strong =
copyleft-weak =
copyleft-partial = This is a free software license, incompatible with the GNU GPL. We recommend that you not use this license for new software that you write, but it is ok to use and improve the software released under this license. More explanation.



BitTorrent Open Source License

License URL = http://directory.fsf.org/wiki/License:BitTorrentOSL1.1
GNU License list URL = http://www.fsf.org/licenses/license-list.html#bittorrent
free software? = Yes
gplv2 compatible? = No
gplv3 compatible? = No
patent provision? =
lax =
permissive =
copyleft =
copyleft-strong =
copyleft-weak =
copyleft-partial = This is a free software license, but incompatible with the GPL, for the same reasons as the Jabber Open Source License.



Original BSD license

License URL = http://directory.fsf.org/wiki/License:BSD_4Clause
GNU License list URL = http://www.fsf.org/licenses/license-list.html#OriginalBSD
free software? = Yes
gplv2 compatible? = No
gplv3 compatible? = No
patent provision? =
lax = Yes
permissive = Yes
copyleft = Yes
copyleft-strong =
copyleft-weak =
copyleft-partial = This license is also sometimes called the “4-clause BSD license”.

This is a lax, permissive non-copyleft free software license with a serious flaw: the “obnoxious BSD advertising clause”. The flaw is not fatal; that is, it does not render the software nonfree. But it does cause practical problems, including incompatibility with the GNU GPL.

We urge you not to use the original BSD license for software you write. If you want to use a lax, permissive non-copyleft free software license, it is much better to use the modified BSD license, the X11 license or the Expat license. Even better, for a substantial program, use the Apache 2.0 license since it takes action against patent treachery.

However, there is no reason not to use programs that have been released under the original BSD license.



Common Development and Distribution License (CDDL), version 1.0

License URL = http://directory.fsf.org/wiki/License:CDDLv1.0
GNU License list URL = http://www.fsf.org/licenses/license-list.html#CDDL
free software? = Yes
gplv2 compatible? = No
gplv3 compatible? = No
patent provision? =
lax =
permissive =
copyleft = No
copyleft-strong =
copyleft-weak =
copyleft-partial = This is a free software license. It has a copyleft with a scope that's similar to the one in the Mozilla Public License, which makes it incompatible with the GNU GPL. This means a module covered by the GPL and a module covered by the CDDL cannot legally be linked together. We urge you not to use the CDDL for this reason.

Also unfortunate in the CDDL is its use of the term “intellectual property”.



Common Public Attribution License 1.0 (CPAL)

License URL = https://www.socialtext.net/open/cpal_license_in_wikitext
GNU License list URL = http://www.fsf.org/licenses/license-list.html#CPAL
free software? = Yes
gplv2 compatible? = No
gplv3 compatible? = No
patent provision? =
lax =
permissive =
copyleft =
copyleft-strong =
copyleft-weak =
copyleft-partial = This is a free software license. It is based on the Mozilla Public License version 1, and is incompatible with the GPL for the same reasons: it has several requirements for modified versions that do not exist in the GPL. It also requires you to publish the source of the program if you allow others to use it.



Common Public License Version 1.0

License URL = http://directory.fsf.org/wiki/License:CPLv1.0
GNU License list URL = http://www.fsf.org/licenses/license-list.html#CommonPublicLicense10
free software? = Yes
gplv2 compatible? = No
gplv3 compatible? = No
patent provision? =
lax =
permissive =
copyleft =
copyleft-strong = No
copyleft-weak =
copyleft-partial = This is a free software license. Unfortunately, its weak copyleft and choice of law clause make it incompatible with the GNU GPL.



Condor Public License

License URL = http://directory.fsf.org/wiki?title=License:Condor1.1
GNU License list URL = http://www.fsf.org/licenses/license-list.html#Condor
free software? = Yes
gplv2 compatible? = No
gplv3 compatible? = No
patent provision? =
lax =
permissive =
copyleft =
copyleft-strong =
copyleft-weak =
copyleft-partial = Recent versions of Condor (from 6.9.5 on) are released under the Apache License 2.0. Only older versions of Condor use this license.

The Condor Public License is a free software license. It has a couple of requirements that make it incompatible with the GNU GPL, including strong restrictions on the use of Condor-related names, and a condition that you must comply with United States export laws.



Eclipse Public License Version 1.0

License URL = http://directory.fsf.org/wiki/License:EPLv1.0
GNU License list URL = http://www.fsf.org/licenses/license-list.html#EPL
free software? =
gplv2 compatible? =
gplv3 compatible? =
patent provision? = Yes
lax =
permissive =
copyleft =
copyleft-strong =
copyleft-weak =
copyleft-partial = The Eclipse Public License is similar to the Common Public License, and our comments on the CPL apply equally to the EPL. The only change is that the EPL removes the broader patent retaliation language regarding patent infringement suits specifically against Contributors to the EPL'd program.



European Union Public License (EUPL) version 1.1

License URL = http://directory.fsf.org/wiki/License:EUPLv1.1
GNU License list URL = http://www.fsf.org/licenses/license-list.html#EUPL
free software? = Yes
gplv2 compatible? = No
gplv3 compatible? = No
patent provision? =
lax =
permissive =
copyleft = No
copyleft-strong =
copyleft-weak =
copyleft-partial = This is a free software license. By itself, it has a copyleft comparable to the GPL's, and incompatible with it. However, it gives recipients ways to relicense the work under the terms of other selected licenses, and some of those—the Eclipse Public License and the Common Public License in particular—only provide a weaker copyleft. Thus, developers can't rely on this license to provide a strong copyleft.

The EUPL allows relicensing to GPLv2, because that is listed as one of the alternative licenses that users may convert to. It also, indirectly, allows relicensing to GPL version 3, because there is a way to relicense to the CeCILL v2, and the CeCILL v2 gives a way to relicense to any version of the GNU GPL.

To do this two-step relicensing, you need to first write a piece of code which you can license under the CeCILL v2, or find a suitable module already available that way, and add it to the program. Adding that code to the EUPL-covered program provides grounds to relicense it to the CeCILL v2. Then you need to write a piece of code which you can license under the GPLv3+, or find a suitable module already available that way, and add it to the program. Adding that code to the CeCILL-covered program provides grounds to relicense it to GPLv3+.



IBM Public License, Version 1.0

License URL = http://directory.fsf.org/wiki/License:IBMPLv1.0
GNU License list URL = http://www.fsf.org/licenses/license-list.html#IBMPL
free software? = Yes
gplv2 compatible? = No
gplv3 compatible? = No
patent provision? =
lax =
permissive =
copyleft =
copyleft-strong =
copyleft-weak =
copyleft-partial = This is a free software license. Unfortunately, it has a choice of law clause which makes it incompatible with the GNU GPL.



Jabber Open Source License, Version 1.0

License URL = http://directory.fsf.org/wiki/License:JabberOSLv1.0
GNU License list URL = http://www.fsf.org/licenses/license-list.html#josl
free software? = Yes
gplv2 compatible? = No
gplv3 compatible? = No
patent provision? =
lax =
permissive =
copyleft =
copyleft-strong =
copyleft-weak =
copyleft-partial = The license is a free software license, incompatible with the GPL. It permits relicensing under a certain class of licenses, those which include all the requirements of the Jabber license. The GPL is not a member of that class, so the Jabber license does not permit relicensing under the GPL. Therefore, it is not compatible.



LaTeX Project Public License 1.3a

License URL = http://directory.fsf.org/wiki/License:LPPLv1.3a
GNU License list URL = http://www.fsf.org/licenses/license-list.html#LPPL-1.3a
free software? = Yes
gplv2 compatible? = No
gplv3 compatible? = No
patent provision? =
lax =
permissive =
copyleft =
copyleft-strong =
copyleft-weak =
copyleft-partial = We have not written a full analysis of this license, but it is a free software license, with less stringent requirements on distribution than LPPL 1.2 (described next). It is still incompatible with the GPL because some modified versions must include a copy of or pointer to an unmodified version.



LaTeX Project Public License 1.2

License URL = http://directory.fsf.org/wiki/License:LPPLv1.2
GNU License list URL = http://www.fsf.org/licenses/license-list.html#LPPL-1.2
free software? = Yes
gplv2 compatible? = No
gplv3 compatible? = No
patent provision? =
lax =
permissive =
copyleft =
copyleft-strong =
copyleft-weak =
copyleft-partial = This license is an incomplete statement of the distribution terms for LaTeX. As far as it goes, it is a free software license, but incompatible with the GPL because it has many requirements that are not in the GPL.

This license contains complex and annoying restrictions on how to publish a modified version, including one requirement that falls just barely on the good side of the line of what is acceptable: that any modified file must have a new name.

The reason this requirement is acceptable for LaTeX is that TeX has a facility to allow you to map file names, to specify “use file bar when file foo is requested”. With this facility, the requirement is merely annoying; without the facility, the same requirement would be a serious obstacle, and we would have to conclude it makes the program nonfree.

This condition may cause trouble with some major modifications. For example, if you wanted to port an LPPL-covered work to another system that lacked a similar remapping facility, but still required users to request this file by name, you would need to implement a remapping facility too to keep this software free. That would be a nuisance, but the fact that a license would make code nonfree if transplanted into a very different context does not make it nonfree in the original context.

The LPPL says that some files, in certain versions of LaTeX, may have additional restrictions, which could render them nonfree. For this reason, it may take some careful checking to produce a version of LaTeX that is free software.

The LPPL makes the controversial claim that simply having files on a machine where a few other people could log in and access them in itself constitutes distribution. We believe courts would not uphold this claim, but it is not good for people to start making the claim.

Please do not use this license for any other project.

Note: These comments are for version 1.2 (3 Sep 1999) of the LPPL.



Lucent Public License Version 1.02 (Plan 9 license)

License URL = http://directory.fsf.org/wiki/License:LucentPLv1.02
GNU License list URL = http://www.fsf.org/licenses/license-list.html#lucent102
free software? = Yes
gplv2 compatible? = No
gplv3 compatible? = No
patent provision? =
lax =
permissive =
copyleft =
copyleft-strong =
copyleft-weak =
copyleft-partial = This is a free software license, but it is incompatible with the GNU GPL because of its choice of law clause. We recommend that you not use this license for new software that you write, but it is ok to use and improve Plan 9 under this license.



Microsoft Public License (Ms-PL)

License URL = http://directory.fsf.org/wiki/License:MsPL
GNU License list URL = http://www.fsf.org/licenses/license-list.html#ms-pl
free software? = Yes
gplv2 compatible? = No
gplv3 compatible? = No
patent provision? =
lax =
permissive =
copyleft =
copyleft-strong = No
copyleft-weak =
copyleft-partial = This is a free software license; it has a copyleft that is not strong, but incompatible with the GNU GPL. We urge you not to use the Ms-PL for this reason.



Microsoft Reciprocal License (Ms-RL)

License URL = http://directory.fsf.org/wiki/License:MsRL
GNU License list URL = http://www.fsf.org/licenses/license-list.html#ms-rl
free software? = Yes
gplv2 compatible? = No
gplv3 compatible? = No
patent provision? =
lax =
permissive =
copyleft =
copyleft-strong =
copyleft-weak =
copyleft-partial = This is a free software license. It's based on the Microsoft Public License, and has an additional clause to make the copyleft just a little bit stronger. It's also incompatible with the GNU GPL, and we urge you not to use the Ms-RL for this reason.



Mozilla Public License (MPL) version 1.1

License URL = http://directory.fsf.org/wiki/License:MPLv1.1
GNU License list URL = http://www.fsf.org/licenses/license-list.html#MPL
free software? = Yes
gplv2 compatible? = No
gplv3 compatible? = No
patent provision? =
lax =
permissive =
copyleft =
copyleft-strong = No
copyleft-weak =
copyleft-partial = This is a free software license which is not a strong copyleft; unlike the X11 license, it has some complex restrictions that make it incompatible with the GNU GPL. That is, a module covered by the GPL and a module covered by the MPL cannot legally be linked together. We urge you not to use the MPL 1.1 for this reason.

However, MPL 1.1 has a provision (section 13) that allows a program (or parts of it) to offer a choice of another license as well. If part of a program allows the GNU GPL as an alternate choice, or any other GPL-compatible license as an alternate choice, that part of the program has a GPL-compatible license.

MPL version 2.0 has a number of improvements, including GPL-compatibility by default. See that entry for details.



Netizen Open Source License (NOSL), Version 1.0

License URL = http://directory.fsf.org/wiki/License:NOSLv1.0
GNU License list URL = http://www.fsf.org/licenses/license-list.html#NOSL
free software? = Yes
gplv2 compatible? = No
gplv3 compatible? = No
patent provision? =
lax =
permissive =
copyleft =
copyleft-strong =
copyleft-weak =
copyleft-partial = This is a free software license that is essentially the same as the Mozilla Public License version 1.1. Like the MPL, the NOSL has some complex restrictions that make it incompatible with the GNU GPL. That is, a module covered by the GPL and a module covered by the NOSL cannot legally be linked together. We urge you not to use the NOSL for this reason.



Netscape Public License (NPL), versions 1.0 and 1.1

License URL = http://directory.fsf.org/wiki?title=License:NPLv1.1
GNU License list URL = http://www.fsf.org/licenses/license-list.html#NPL
free software? = Yes
gplv2 compatible? = No
gplv3 compatible? = No
patent provision? =
lax =
permissive =
copyleft =
copyleft-strong = No
copyleft-weak =
copyleft-partial = This is a free software license, not a strong copyleft, and incompatible with the GNU GPL. It consists of the Mozilla Public License version 1.1 with an added clause that permits Netscape to use your added code even in their proprietary versions of the program. Of course, they do not give you permission to use their code in the analogous way. We urge you not to use the NPL.



Nokia Open Source License

License URL = http://directory.fsf.org/wiki/License:NokOSv1.0a
GNU License list URL = http://www.fsf.org/licenses/license-list.html#Nokia
free software? = Yes
gplv2 compatible? = No
gplv3 compatible? = No
patent provision? =
lax =
permissive =
copyleft =
copyleft-strong =
copyleft-weak =
copyleft-partial = This is similar to the Mozilla Public License version 1: a free software license incompatible with the GNU GPL.



Old OpenLDAP License, Version 2.3

License URL = http://directory.fsf.org/wiki/License:OpenLDAPv2.3
GNU License list URL = http://www.fsf.org/licenses/license-list.html#oldOpenLDAP
free software? = Yes
gplv2 compatible? = No
gplv3 compatible? = No
patent provision? =
lax =
permissive = Yes
copyleft = Yes
copyleft-strong =
copyleft-weak =
copyleft-partial = This is a permissive non-copyleft free software license with a few requirements (in sections 4 and 5) that render it incompatible with the GNU GPL. Note that the latest version of OpenLDAP has a different license that is compatible with the GNU GPL.

We urge you not to use the older OpenLDAP license for software you write. However, there is no reason to avoid running programs that have been released under this license.



Open Software License, all versions through 3.0

License URL = http://directory.fsf.org/wiki/License:OSLv3.0
GNU License list URL = http://www.fsf.org/licenses/license-list.html#OSL
free software? = Yes
gplv2 compatible? = No
gplv3 compatible? = No
patent provision? =
lax =
permissive =
copyleft =
copyleft-strong =
copyleft-weak =
copyleft-partial = The Open Software License is a free software license. It is incompatible with the GNU GPL in several ways.

Recent versions of the Open Software License have a term which requires distributors to try to obtain explicit assent to the license. This means that distributing OSL software on ordinary FTP sites, sending patches to ordinary mailing lists, or storing the software in an ordinary version control system, is arguably a violation of the license and would subject you to possible termination of the license. Thus, the Open Software License makes it very difficult to develop software using the ordinary tools of free software development. For this reason, and because it is incompatible with the GPL, we recommend that no version of the OSL be used for any software.

We urge you not to use the Open Software License for software you write. However, there is no reason to avoid running programs that have been released under this license.



OpenSSL license

License URL = http://directory.fsf.org/wiki/License:OpenSSL
GNU License list URL = http://www.fsf.org/licenses/license-list.html#OpenSSL
free software? = Yes
gplv2 compatible? = No
gplv3 compatible? = No
patent provision? =
lax =
permissive =
copyleft = No
copyleft-strong =
copyleft-weak =
copyleft-partial = The license of OpenSSL is a conjunction of two licenses, one of them being the license of SSLeay. You must follow both. The combination results in a copyleft free software license that is incompatible with the GNU GPL. It also has an advertising clause like the original BSD license and the Apache 1 license.
   We recommend using GNUTLS instead of OpenSSL in software you write. However, there is no reason not to use OpenSSL and applications that work with OpenSSL.



Phorum License, Version 2.0

License URL = http://directory.fsf.org/wiki/License:Phorum2.0
GNU License list URL = http://www.fsf.org/licenses/license-list.html#Phorum
free software? = Yes
gplv2 compatible? = No
gplv3 compatible? = No
patent provision? =
lax =
permissive =
copyleft =
copyleft-strong =
copyleft-weak =
copyleft-partial = This is a free software license but it is incompatible with the GPL. Section 5 makes the license incompatible with the GPL.



PHP License, Version 3.01

License URL = http://directory.fsf.org/wiki/License:PHPv3.01
GNU License list URL = http://www.fsf.org/licenses/license-list.html#PHP-3.01
free software? = Yes
gplv2 compatible? = No
gplv3 compatible? = No
patent provision? =
lax =
permissive =
copyleft = Yes
copyleft-strong =
copyleft-weak =
copyleft-partial = This license is used by most of PHP4. It is a non-copyleft free software license. It is incompatible with the GNU GPL because it includes strong restrictions on the use of “PHP” in the name of derived products.
   We recommend that you not use this license for anything except PHP add-ons.



License of Python 1.6b1 through 2.0 and 2.1

License URL = http://directory.fsf.org/wiki/License:Python1.6b1
GNU License list URL = http://www.fsf.org/licenses/license-list.html#PythonOld
free software? = Yes
gplv2 compatible? = No
gplv3 compatible? = No
patent provision? =
lax =
permissive =
copyleft =
copyleft-strong =
copyleft-weak =
copyleft-partial = This is a free software license but is incompatible with the GNU GPL. The primary incompatibility is that this Python license is governed by the laws of the State of Virginia, in the USA, and the GPL does not permit this.



Q Public License (QPL), Version 1.0

License URL = http://directory.fsf.org/wiki/License:QPLv1.0
GNU License list URL = http://www.fsf.org/licenses/license-list.html#QPL
free software? = Yes
gplv2 compatible? = No
gplv3 compatible? = No
patent provision? =
lax =
permissive =
copyleft = Yes
copyleft-strong =
copyleft-weak =
copyleft-partial = This is a non-copyleft free software license which is incompatible with the GNU GPL. It also causes major practical inconvenience, because modified sources can only be distributed as patches.

We recommend that you avoid using the QPL for anything that you write, and use QPL-covered software packages only when absolutely necessary. However, this avoidance no longer applies to Qt itself, since Qt is now also released under the GNU GPL.

Since the QPL is incompatible with the GNU GPL, you cannot take a GPL-covered program and QPL-covered program and link them together, no matter how.

However, if you have written a program that uses QPL-covered library (called FOO), and you want to release your program under the GNU GPL, you can easily do that. You can resolve the conflict for your program by adding a notice like this to it:

As a special exception, you have permission to link this program with the FOO library and distribute executables, as long as you follow the requirements of the GNU GPL in regard to all of the software in the executable aside from FOO.

You can do this, legally, if you are the copyright holder for the program. Add it in the source files, after the notice that says the program is covered by the GNU GPL.



RealNetworks Public Source License (RPSL), Version 1.0

License URL = http://directory.fsf.org/wiki/License:RPSLv1.0
GNU License list URL = http://www.fsf.org/licenses/license-list.html#RPSL
free software? = Yes
gplv2 compatible? = No
gplv3 compatible? = No
patent provision? =
lax =
permissive =
copyleft =
copyleft-strong =
copyleft-weak =
copyleft-partial = The RPSL is a free software license that is GPL-incompatible for a number of reasons: it requires that derivative works be licensed under the terms of the RPSL, and mandates that any litigation take place in Seattle, Washington.



Sun Industry Standards Source License 1.0

License URL = http://www.openoffice.org/licenses/sissl_license.html
GNU License list URL = http://www.fsf.org/licenses/license-list.html#SISSL
free software? = Yes
gplv2 compatible? = No
gplv3 compatible? = No
patent provision? =
lax =
permissive =
copyleft =
copyleft-strong = No
copyleft-weak =
copyleft-partial = This is a free software license, not a strong copyleft, which is incompatible with the GNU GPL because of details rather than any major policy.



Sun Public License

License URL = http://directory.fsf.org/wiki/License:SPLv1.0
GNU License list URL = http://www.fsf.org/licenses/license-list.html#SPL
free software? = Yes
gplv2 compatible? = No
gplv3 compatible? = No
patent provision? =
lax =
permissive =
copyleft =
copyleft-strong =
copyleft-weak =
copyleft-partial = This is essentially the same as the Mozilla Public License version 1: a free software license incompatible with the GNU GPL. Please do not confuse this with the Sun Community Source License, which is not a free software license.



License of xinetd

License URL = http://directory.fsf.org/wiki/License:Xinetd
GNU License list URL = http://www.fsf.org/licenses/license-list.html#xinetd
free software? = Yes
gplv2 compatible? = No
gplv3 compatible? = No
patent provision? =
lax =
permissive =
copyleft = No
copyleft-strong =
copyleft-weak =
copyleft-partial = This is a copyleft free software license, incompatible with the GPL. It is incompatible because it places extra restrictions on redistribution of modified versions that contradict the redistribution requirements in the GPL.



Yahoo! Public License 1.1

License URL = http://www.zimbra.com/license/yahoo_public_license_1.1.html
GNU License list URL = http://www.fsf.org/licenses/license-list.html#Yahoo
free software? = Yes
gplv2 compatible? = No
gplv3 compatible? = No
patent provision? =
lax =
permissive =
copyleft =
copyleft-strong =
copyleft-weak =
copyleft-partial = This is a free software license. It has a copyleft similar to the one found in the Mozilla Public License. It also has a choice of law clause in section 7. These features both make the license GPL-incompatible. The license also unfortunately uses the term “intellectual property”.



Zend License, Version 2.0

License URL = http://www.zend.com/license/2_00.txt
GNU License list URL = http://www.fsf.org/licenses/license-list.html#Zend
free software? = Yes
gplv2 compatible? = No
gplv3 compatible? = No
patent provision? =
lax =
permissive =
copyleft = Yes
copyleft-strong =
copyleft-weak =
copyleft-partial = This license is used by one part of PHP4. It is a non-copyleft free software license which is incompatible with the GNU GPL, and has practical problems like those of the original BSD license.
   We recommend that you not use this license for anything you write.



Zimbra Public License 1.3

License URL = http://www.zimbra.com/license/zimbra-public-license-1-3.html
GNU License list URL = http://www.fsf.org/licenses/license-list.html#Zimbra
free software? = Yes
gplv2 compatible? = No
gplv3 compatible? = No
patent provision? =
lax =
permissive =
copyleft =
copyleft-strong =
copyleft-weak = Yes
copyleft-partial = This license is identical to the Yahoo! Public License 1.1, except that the license is provided by VMWare instead of Yahoo!. Our comments there apply here as well; this is a GPL-incompatible, partial copyleft free software license.



Zope Public License version 1

License URL = http://web.archive.org/web/20000816090640/http://www.zope.org/Resources/ZPL
GNU License list URL = http://www.fsf.org/licenses/license-list.html#Zope
free software? = Yes
gplv2 compatible? = No
gplv3 compatible? = No
patent provision? =
lax = Yes
permissive = Yes
copyleft = Yes
copyleft-strong =
copyleft-weak =
copyleft-partial = This is a lax, fairly permissive non-copyleft free software license with practical problems like those of the original BSD license, including incompatibility with the GNU GPL.

We urge you not to use the ZPL version 1 for software you write. However, there is no reason to avoid running programs that have been released under this license, such as previous versions of Zope.

Version 2.0 of the Zope Public License is GPL-compatible.




Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.3 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the page “GNU Free Documentation License”.

The copyright and license notices on this page only apply to the text on this page. Any software or copyright-licenses or other similar notices described in this text has its own copyright notice and license, which can usually be found in the distribution or license text itself.


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