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 …

Sep 19, 2006 · Licenses in this group are specific to their authors and cannot be reused by others. Many, but not all, of these licenses fall into the category of vanity licenses.

Oct 21, 2007 · The best place to discuss an issue about an open source license, or about a potential open source license, is on our license-discuss mailing list, about which you can read more on our …

Jul 7, 2006 · The license must explicitly permit distribution of software built from modified source code. The license may require derived works to carry a different name or version number from the original …

International Non-Reusable Other/Miscellaneous Popular / Strong Community Redundant with more popular Special Purpose Superseded Uncategorized Voluntarily retired

Dec 17, 2025 · These licenses continue to lead the way as the go-to choices for countless Open Source projects worldwide, reflecting their widespread adoption and versatility. Here’s the top 20 OSI …

Feb 8, 2004 · “Source” form shall mean the preferred form for making modifications, including but not limited to software source code, documentation source, and configuration files.

Dec 23, 2024 · These licenses continue to lead the way as the go-to choices for countless Open Source projects worldwide, reflecting their widespread adoption and versatility. Here’s the top 20 OSI …

The content on this website, of which Opensource.org is the author, is licensed under a Creative Commons Attribution 4.0 International License. Opensource.org is not the author of any of the …

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the “Software”), to deal in the Software without restriction, including …