Open Source Licenses by Category

.:: License Index ::.

• License Approval Process
• License Information
• Origins and definitions of categories from the License Proliferation Committee report

.:: License that are popular and widely used or with strong communities ::.

• Apache License, 2.0 (Apache-2.0)
• BSD 3-Clause "New" or "Revised" license (BSD-3-Clause)
• BSD 3-Clause "Simplified" or "FreeBSD" license (BSD-2-Clause)
• GNU General Public License (GPL)
• GNU Library or "Lesser" General Public License (LGPL)
• MIT license (MIT)
• Mozilla Public License 2.0 (MPL-2.0)
• Common Development and Distribution License (CDDL-1.0)
• Eclipse Public License (EPL-1.0)

.:: Special purpose licenses ::.

• Educational Community License
• IPA Font License (IPA)
• NASA Open Source Agreement 1.3 (NASA-1.3)
• Open Font License 1.1 (OFL-1.1)

.:: Other/Miscellaneous licenses ::.

• Adaptive Public License (APL-1.0)
• Artistic license 2.0 (Artistic-2.0)
• Open Software License (OSL-3.0)
• Q Public License (QPL-1.0)
• 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)
• 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
• 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) (overall Python license)
• CNRI Python license (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)
• 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
• Common Public License 1.0
• Artistic license 1.0
• Eiffel Forum License V1.0
• Lucent Public License (Plan9)
• Mozilla Public License 1.1 (MPL 1.1)
• Mozilla Public License 1.0 (MPL 1.0)
• Open Software License 1.0
• Reciprocal Public License

.:: Licenses that have been voluntarily retired ::.

• Intel Open Source License
• Jabber Open Source License
• MITRE Collaborative Virtual Workspace License (CVW License)
• Sun Industry Standards Source License (SISSL)

.:: Uncategorized Licenses ::.

• Boost Software License (BSL1.0)
• Common Public Attribution License 1.0 (CPAL)
• European Union Public License (EUPL-1.1) (links to every language's version on their site)
• 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 (Simple-2.0)
• Open Group Test Suite License (OGTSL)