San Francisco · Late April 2026
A week-long convergence of technologists, founders, investors, activists, maintainers, and innovators. Building the future in the open.
Open Source Week is San Francisco's dedicated gathering for the people who build, maintain, and champion open source. Over a full week in late April, we're bringing together technologists, founders, investors, activists, maintainers, and innovators who share a common belief: the best things are built in the open.
This isn't a corporate conference. It's a week of talks, workshops, hackathons, demos, and late-night conversations about the future of open source software, infrastructure, and community. Whether you maintain a project, fund one, or build with them every day, there's a place for you here.
Talks, workshops, hackathons, demos, and more. Full schedule dropping soon.
Deep dives into open source projects, maintainer stories, and the future of building in the open.
Collaborative coding sessions, contribution sprints, and hackathons where you build alongside maintainers and ship real code.
Live demos of open source projects, startup showcases, and lightning talks from builders pushing the boundaries of what's possible.
Hands-on sessions covering everything from contributing to OSS for the first time to scaling open source infrastructure and building sustainable projects.
Lineup announcing soon.
We're booking speakers, maintainers, founders, investors, and workshop leaders now. Want to be part of it?
Submit a ProposalExact venue and dates to be announced shortly. We're securing a space that fits the vibe: collaborative, flexible, and built for connecting.
Open Source Week is built by the community. Here's how you can be part of it.
Have a talk, workshop, demo, or hackathon you want to bring? We're actively looking for contributors across all tracks.
Submit ProposalHelp make Open Source Week happen. Sponsorships support the venue, production, speaker travel, and keeping the event accessible.
Become a SponsorSign up to be notified when registration opens and get early access to the schedule, lineup, and ticket information.
Get NotifiedWe need event coordinators, community organizers, and on-site helpers. If you want to help run the show, reach out.
Volunteer