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.
Whether you’re new to Drupal or a longtime member of the Drupal community, you’ll find new insights and connections to advance your career and your business at this event in
WordCamp Europe 2023
Held in Athens, Greece, WordCamp Europe is an informal, community-organized gathering of WordPress enthusiasts – from casual users to Core developers – where we discuss all things WordPress, share ideas
Open Infra Summit Vancouver 2023
Join us in Vancouver for Open Infra Summit. OSI will have a booth there, celebrating our 25th anniversary. Collaborate directly with the people building and running open source infrastructure using
Experts from around the world talk about Open Source software in modern corporate information systems at Paris-Châtillon. OW2con’23 will address the many current challenges to be faced to make open
The board of directors
Most of OSI’s board of directors are elected by individual members and Affiliate organizations.