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

Open Source Initiative, and Open Source Software Movement Celebrate Twenty Years


The Open Source Initiative will celebrate its 20th Anniversary in 2018. In the true open source spirit, the organization will invite everyone in the open source community to participate.


Raleigh, NC Oct. 23, 2018 — All Things Open Conference — The Open Source Initiative® (OSI), the global non-profit dedicated to raising awareness and adoption of open source software, announced today plans for the “Open Source 20th Anniversary World Tour” to run through 2018.