Registration for Open Community Experience (OCX) 2027 is now open. Europe's leading open source developer conference returns to Brussels from 13 to 15 April 2027.
Register early to get the best rate. Early-bird pricing is available until 21 February.
Three days built around community
OCX 2027 brings together more than 600 developers, maintainers, engineering leaders, researchers, and open source communities, with 100+ speakers across five tracks:
- Software-defined systems & mobility
- Modern software development
- Digital autonomy & technological sovereignty
- Cybersecurity & regulatory compliance
- Research & innovation
Topics range from AI and agentic development to software-defined vehicles, Java and runtimes, embedded systems and IoT, security, open regulatory compliance, and cloud native technologies. AI runs through every track.
What your registration includes
- Access to all conference tracks: Attend sessions without needing separate tickets for individual tracks.
- Workshops and Birds of a Feather sessions: Join interactive learning experiences and community discussions.
- Lunch, coffee breaks, and snacks: Stay energised throughout the conference.
- Exhibition and networking: Explore the exhibition area, meet participating organisations, and join the conference networking activities.
- The OCX mobile app: Build your personalised schedule, discover sessions, and connect with fellow attendees.
Choose the right pass for you
OCX offers different registration options to make the conference accessible to a wide range of participants.
- Member pass: Eclipse Foundation members, committers, and anyone who has previously attended an Eclipse Foundation event. Full conference access.
- Non-member pass: The standard three-day pass, available to everyone.
- Daily pass: Attendees who can join for only one day.
- Academic and researcher pass: College and university staff and research professionals. Subject to approval and availability.
- Non-corporate and freelance pass: Freelancers and individuals covering their own registration costs. Subject to approval and availability.
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Government pass: Representatives of government agencies, ministries, and public institutions. Subject to approval and availability.
Take advantage of early bird pricing and discounts
Planning ahead can help you save on your OCX experience. Early bird rates are available until 21 February, so we encourage attendees to register early and benefit from reduced pricing.
Additional discounts and registration arrangements are available for certain groups:
- Speakers: Accepted speakers and co-speakers receive complimentary conference registration.
- Sponsors: Participating sponsors receive registration codes according to their sponsorship arrangements.
- Groups: Discounts are available for groups of five or more people from the same organisation.
- Press and analysts: A limited number of complimentary passes are available to pre-qualified media professionals and analysts.
For group bookings, pass approvals, or press registration enquiries, contact registration@ocxconf.org.
You can also explore the call for proposals if you're interested in becoming a speaker. Selected speakers receive a free pass.
Ready to join us in Brussels?
Come to deepen your technical knowledge, discover new approaches, meet the communities behind important projects, and take part in conversations that can lead to future collaboration.
We look forward to seeing you in Brussels!
