The steward of the Open Source Definition, setting the foundation for the Open Source Software ecosystem.
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End of 10: The Open Source alternative to forced obsolescence
The OSI is proud to stand with the “End of 10” campaign—a community-driven effort to turn the looming end of Windows 10 support into an opportunity for freedom, sustainability, and digital empowerment.
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OSI at the Open Source Founders Summit: supporting entrepreneurs to build a business with Open Source
Open Source Founders Summit (#05F525), held May 19–20 in Paris, brought together a vibrant community of Open Source entrepreneurs, builders, and advocates for two days of deep, engaging conversations about what it takes to create sustainable, successful Open Source companies.
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New project highlights Open Source Initiative and Apereo Foundation’s response to White House on AI
The Institute for Progress (IFP), a non-partisan U.S. think tank focused on innovation policy, announced a new project that highlights responses to the Trump Administration’s request for public comment on what should be included in a national “AI Action Plan.” OSI’s comment with the Apereo Foundation was one of 33 comments highlighted in an initial release of IFP’s database.
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May is Maintainer Month: Celebrating those who secure Open Source
Maintainer Month returns this May, and the Open Source Initiative (OSI) is proud to join GitHub and a global community of contributors in honoring the individuals who steward and sustain Open Source projects. In 2025, Maintainer Month enters its fourth year with a clear and urgent theme: Securing Open Source.
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Advance your career and organization with the CODE certification
We're excited to highlight the Certified Open Source Developer for Enterprise (CODE) certification, led by the TODO Group and Linux Foundation Training & Certification, with the Open Source Initiative (OSI) contributing as a supporting partner.