OSI Approved Licenses

Open source licenses are licenses that comply with the Open Source Definition – in brief, they allow software to be freely used, modified, and shared. To be approved by the Open Source Initiative (also known as the OSI) a license must go through the Open Source Initiative’s license review process.


clear categories
Column headers with buttons are sortable
1-clause BSD License BSD-1-Clause
Adaptive Public License 1.0 APL-1.0
Artistic License 2.0 Artistic-2.0
JAM License Jam
MIT No Attribution License MIT-0
The Open Software License 3.0 OSL-3.0
The Q Public License Version QPL-1.0
The Universal Permissive License Version 1.0 UPL-1.0
The zlib/libpng License Zlib
Zero-Clause BSD 0BSD