To promote and protect open source...

As a global non-profit, The Open Source Initiative (OSI) protects and promotes open source software, development and communities, championing software freedom in society through education, collaboration, and infrastructure, stewarding the Open Source Definition (OSD), and preventing abuse of the ideals and ethos inherent to the open source movement. See our about and history pages for more.

Open source software is software that can be freely used, changed, and shared (in modified or unmodified form) by anyone. Open source software is made by many people, and distributed under licenses that comply with the Open Source Definition.

News

Kicking off the 2016 End-of-Year Fundraiser

Thanks to a single staff member, ten volunteer board members, and dozens of interns, volunteers, and members, the Open Source Initiative (OSI) protects and promotes open source software, development and communities, championing software freedom in society through education, collaboration, and infrastructure, stewarding the Open Source Definition, and preventing abuse of the ideals and ethos inherent to the open source movement.

Odoo Community Association Joins Open Source Initiative

PALO ALTO, Calif. - Oct. 19, 2016 -- The Open Source Initiative® (OSI), a global non-profit formed to educate about and advocate for the benefits of open source software and communities, announced today the affiliate membership of the Odoo Community Association (OCA), a nonprofit organization whose mission is to promote the widespread use of Odoo and to support the collaborative development of Odoo features.

Hello fans and followers of open source voting in San Francisco!

The Open Source Initiative works with a variety of organizations to promote the adoption of open source software throughout government. San Francisco Elections Commissioner Chris Jerdonek provides the OSI with a breakdown of the latest happening with San Francisco's efforts to develop and certify the country's first open source voting system!

Open Source Initiative Welcomes Open edX as Newest Affiliate Member

The Open Source Initiative® (OSI), the stewards of the Open Source Definition and the community-recognized body for reviewing and approving open source licenses, is announcing the affiliate membership of Open edX, the open source platform originally developed by edX.