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The Open Source Initiative is the authority that defines Open Source, recognized globally by individuals, companies, and by public institutions.

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October 1 – 3, 2025

A 3-day Virtual Event on Data Governance, and Open Source AI

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OUR 2025 roadmap to a stronger ecosystem

Strengthening collaborations with legal experts, policymakers, and maintainers, as well as addressing the complexities of the Open Source Definition in the age of AI.

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THE open source ai definition 1.0

We have released the first stable version of the Definition.

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About the Open Source Initiative

The OSI is the authority that defines Open Source, recognized globally by individuals, companies, and by public institutions.

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From the blog

The 2026 State of Open Source Report
The 2026 State of Open Source Report points to open source as a strategic concern for IT leadership, shaped by geopolitical pressure, security risk, compliance complexity, and the growing operational burden of maintaining open source software …
Hello From The New Executive Director
A new chapter begins at the Open Source Initiative, and at a moment of rapid change in global tech, our new Executive Director shares his vision for what comes next and why the future of Open …
Welcoming the New Executive Director!
Members Newsletter – April 2026 The news you’ve all been waiting for has arrived – OSI’s new Executive Director, Duane O’Brien, is on the job effective April 13th.
Welcoming Duane O’Brien as Executive Director of the Open Source Initiative
On behalf of the Board of Directors, I’m thrilled to welcome Duane O’Brien as OSI’s new Executive Director. Duane understands the economic dimensions of Open Source without losing sight of the people who make it work.
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Upcoming Open Source Events

May 2026

Open Source Founders Summit 2026

Open Source Founders Summit 2026

May 18, 2026 - May 19, 2026    
12:00 am
Paris, France
Open Source Founders Summit is a business conference, not a tech conference. Open source companies face challenges and opportunities that proprietary software companies never encounter. [...]
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June 2026

Berlin Buzzwords

Berlin Buzzwords

June 7, 2026 - June 9, 2026    
12:00 am
Berlin, Germany
Berlin Buzzwords is Europe’s leading conference for modern data infrastructure, search and machine learning and is focused on open source software projects.
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UN Open Source Week 2026

UN Open Source Week 2026

June 22, 2026 - June 26, 2026    
12:00 am
NYC, United States
UN Open Source Week 2026 is the premier global forum for advancing open source collaboration in direct support of the Sustainable Development Goals (SDGs) and [...]
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July 2026

Open Source Innovation Days 2026

Open Source Innovation Days 2026

July 1, 2026 - July 2, 2026    
12:00 am
Berlin, Germany
We are excited to invite you to the Open Source Innovation Days 2026. As a valued community member, we would be honoured to have you [...]
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OpenSource.net is a resource for the community

The news site a not-for-profit platform for sharing knowledge, perspectives and advocacy to support a healthy open ecosystem.

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