License Index
- License Approval Process
- License Information
- Origins and definitions of categories from the License Proliferation Committee report
In the lists below, a parenthesized expression following a license name is its SPDX short identifier, if one exists, except for two items in the first list (GNU General Public License and GNU Lesser General Public License). For these, the parenthesized expressions ("GPL" and "LGPL" respectively) are the common non-version-specific names of these licenses today (note also that the full name of the first version (2.0) of the LGPL is the GNU Library General Public License). There is no non-version-specific SPDX short identifier for the GPL and LGPL.
Licenses that are "popular and widely-used or with strong communities"
- Apache License 2.0 (Apache-2.0)
- 3-clause BSD license (BSD-3-Clause)
- 2-clause BSD license (BSD-2-Clause)
- GNU General Public License (GPL)
- GNU Lesser General Public License (LGPL)
- MIT license (MIT)
- Mozilla Public License 2.0 (MPL-2.0)
- Common Development and Distribution License version 1.0 (CDDL-1.0)
- Eclipse Public License version 2.0
International licenses
- Licence Libre du Québec – Permissive (LiLiQ-P) version 1.1 (LiLiQ-P-1.1)
- Licence Libre du Québec – Réciprocité (LiLiQ-R) version 1.1 (LiLiQ-R-1.1)
- Licence Libre du Québec – Réciprocité forte (LiLiQ-R+) version 1.1 (LiLiQ-Rplus-1.1)
Special purpose licenses
- BSD+Patent (BSD-2-Clause-Patent)
- Educational Community License, Version 2.0 (ECL-2.0)
- IPA Font License (IPA)
- NASA Open Source Agreement 1.3 (NASA-1.3)
- OSET Public License version 2.1 (OSET-PL-2.1)
- SIL Open Font License 1.1 (OFL-1.1)
- Upstream Compatibility License v1.0
Other/Miscellaneous licenses
- Adaptive Public License (APL-1.0)
- Artistic license 2.0 (Artistic-2.0)
- Free Public License 1.0.0 (0BSD)
- Open Software License (OSL-3.0)
- Q Public License (QPL-1.0)
- Universal Permissive License (UPL)
- zlib/libpng license (Zlib)
Licenses that are redundant with more popular licenses
- Academic Free License (AFL-3.0)
- Attribution Assurance Licenses (AAL)
- Eiffel Forum License V2.0 (EFL-2.0)
- Fair License (Fair)
- Historical Permission Notice and Disclaimer (HPND)
- Lucent Public License Version 1.02 (LPL-1.02)
- The PostgreSQL License (PostgreSQL)
- University of Illinois/NCSA Open Source License (NCSA)
- X.Net License (Xnet)
Non-reusable licenses
- Apple Public Source License (APSL-2.0)
- Computer Associates Trusted Open Source License 1.1 (CATOSL-1.1)
- CUA Office Public License Version 1.0 (CUA-OPL-1.0)
- eCos License version 2.0
- EU DataGrid Software License (EUDatagrid)
- Entessa Public License (Entessa)
- Frameworx License (Frameworx-1.0)
- IBM Public License (IPL-1.0)
- LaTeX Project Public License (LPPL-1.3c)
- Motosoto License (Motosoto)
- Multics License (Multics)
- Naumen Public License (Naumen)
- Nethack General Public License (NGPL)
- Nokia Open Source License (Nokia)
- OCLC Research Public License 2.0 (OCLC-2.0)
- PHP License (PHP-3.0)
- Python License (Python-2.0)
- CNRI Python license (CNRI-Python) (CNRI portion of Python License)
- RealNetworks Public Source License V1.0 (RPSL-1.0)
- Ricoh Source Code Public License (RSCPL)
- Sleepycat License (Sleepycat)
- Sun Public License (SPL-1.0)
- Sybase Open Watcom Public License 1.0 (Watcom-1.0)
- Vovida Software License v. 1.0 (VSL-1.0)
- W3C License (W3C)
- wxWindows Library License (WXwindows)
- Zope Public License (ZPL-2.0)
Superseded licenses
- Apache Software License 1.1 (Apache-1.1)
- Artistic license 1.0 (Artistic-1.0)
- Common Public License 1.0 (CPL-1.0)
- Eclipse Public License 1.0 (EPL-1.0)
- Educational Community License, Version 1.0 (ECL-1.0)
- Eiffel Forum License V1.0 (EFL-1.0)
- Lucent Public License ("Plan9"), version 1.0 (LPL-1.0)
- Mozilla Public License 1.0 (MPL-1.0)
- Mozilla Public License 1.1 (MPL-1.1)
- Open Software License 1.0 (OSL-1.0)
- Open Software License 2.1 (OSL-2.1)
- Reciprocal Public License, version 1.1 (RPL-1.1)
Licenses that have been voluntarily retired
- Intel Open Source License (Intel)
- Jabber Open Source License
- MITRE Collaborative Virtual Workspace License (CVW)
- Sun Industry Standards Source License (SISSL)
Uncategorized Licenses
- Boost Software License (BSL-1.0)
- CeCILL License 2.1 (CECILL-2.1)
- Common Public Attribution License 1.0 (CPAL-1.0)
- European Union Public License (EUPL-1.1)
- GNU Affero General Public License v3 (AGPL-3.0)
- ISC License (ISC)
- Microsoft Public License (MS-PL)
- Microsoft Reciprocal License (MS-RL)
- MirOS Licence (MirOS)
- Non-Profit Open Software License 3.0 (NPOSL-3.0)
- NTP License (NTP)
- Reciprocal Public License 1.5 (RPL-1.5)
- Simple Public License 2.0 (SimPL-2.0)
- Open Group Test Suite License (OGTSL)