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

Support the OSI´s Work on Behalf of the Open Source Community

Participate in Our Membership Drive Today

The Open Source Initiative turn 18 this year, and we´re running now our membership drive for the 2nd time. To coincide with our 2016 Board elections, we´ll be recruiting new members through the end of the elections on March 14, 2016.

By becoming a member, you not only get a number of benefits like discounted conference passes and gratis technical training content, but more importantly you also get the option to immediately get involved in our voting process!

Indiana University Joins Open Source Initiative

University continues commitment to open source software and communities through OSI Membership.

PALO ALTO, Calif. - Jan. 24, 2016 -- The Open Source Initiative® (OSI) announced today the Affiliate Membership of Indiana University (IU), a long time champion for the use of open source software as a means for greater efficiency in higher education. The partnership highlights the OSI's recent efforts to extend support to higher education: helping colleges and universities across the globe realize the benefits of open source software, develpoment models and communities.