Open Standards Requirement – Open Source Initiative

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Learn more about OSI’s mission, history, people, and programs.
Explore the list of OSI-Approved licenses and learn more about the license review process.
Learn more about Open Source AI, how do we define it, and its benefits to society.
Advancing Open Source through policy, regulation, and standards.
Supporting research, education, and knowledge about Open Source.
Connecting the people and organizations that build and support Open Source.
Explore the latest news, blog posts, newsletters, press mentions, and events from the OSI.
There are many definitions of “Open Standard”. We don’t try to define it ourselves, but we know that if you can’t implement an Open Standard under an Open Source License, it’s not open enough for us. Thus, we have the Open Standard Requirement for Software, our rationale for the requirement, our criteria for compliance, and the FAQ.
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