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.


Thank you, ...we’re not there yet.

“Not there yet...” that phrase actually highlights where we are with several important initiatives here at the OSI and even with open source software broadly.

First, and most pressing for us today, we’re not there yet in our fund raising goals for 2016, and we’re asking those working with open source software—those who not only understand the technical merits, but value open principles—to contribute and help fund our ongoing work.