To simplify software development
We define Open Source
The Open Source Definition is the foundation of the modern software ecosystem. We build a world where the freedoms and opportunities of Open Source software can be enjoyed by all.


The leading voice on the policies and principles of open source
Protecting the Open Source ecosystem
We support institutions and individuals working together to create communities of practice in which the healthy open source ecosystem thrives.
Support Open Source
As a public charity organization, OSI is supported by donations of corporations and individuals. Thanks to our sponsors that support our vision to be the leading voice on policies and principles of Open Source.
Events
-
PyCon – April 19-23, 2023
At PyCon US 2023 happening in Salt Lake City, UT, you will find a program filled with pre-conference tutorials and sponsor presentations, 90+ community talks, keynote speakers, a lively Expo… Read More
The board of directors
Most of OSI’s board of directors are elected by individual members and Affiliate organizations.

