Top 50 Open Source Conferences in 2026
At the Open Source Initiative (OSI), we track a wide range of Open Source conferences, including events that intersect with AI, cloud, cybersecurity, and policy. Around the world, conferences bring together maintainers, developers, contributors, policymakers, researchers, legal experts, and organizations working on shared digital infrastructure.
Below is a chronological overview of the top 50+ Open Source conferences of 2026 we are tracking, with links and short descriptions. These events are not specific to any single programming language or framework. Instead, they reflect the broader Open Source ecosystem and the communities that sustain it.
January
- Everything Open — January 21–23, 2026 (Canberra)
A community-focused Open Source and open technologies conference in the Asia-Pacific region, bringing together developers, advocates, and digital enthusiasts to share knowledge, tools, and practices.
https://everythingopen.au/ - Software Heritage Symposium — January 28, 2026 (Paris)
Preserving software source code as a shared cultural and technical resource.
https://www.softwareheritage.org/2025/11/25/software_heritage_2026_symposium_summit/ - Code & Compliance — January 29, 2026 (Brussels)
Eclipse Foundation event promoting community discussions on Open Source licensing, compliance, and legal clarity.
https://www.eclipse-foundation.events/event/code-compliance-2026/summary - Paris Open Source AI Summit — January 29, 2026 (Paris)
Exploring Open Source approaches to artificial intelligence and transparency.
https://opensourceaisummit.eu/ - EU Open Source Policy Summit — January 30, 2026 (Brussels)
Open Source policy, advocacy, and collaboration led by OpenForum Europe.
https://summit.openforumeurope.org/ - FOSDEM — January 31 – February 1, 2026 (Brussels)
One of the world’s largest, fully community-run Open Source conferences.
https://fosdem.org/
February
- Linux Foundation Members Summit — February 24–25, 2026 (Napa)
Collaboration and coordination between Linux Foundation members.
https://events.linuxfoundation.org/lf-member-summit/ - State of Open Con — Various dates across the UK
Conference organized by OpenUK focused on the state of Open Source sustainability, governance, and community health.
https://stateofopencon.com/
March
- SCALE — March 6–9, 2026 (Pasadena)
A long-running, community-driven Open Source expo in North America.
https://www.socallinuxexpo.org/scale/22x - FOSSASIA Summit — March 9–10, 2026 (Bangkok)
One of Asia’s largest Open Source community conferences, bringing together developers, makers, and Open Tech advocates.
https://eventyay.com/e/88882f3e - FOSS Backstage — March 16–17, 2026 (Berlin)
Focused on governance, sustainability, and the human side of Open Source.
https://26.foss-backstage.de/ - All Things AI — March 23–24, 2026 (Durham)
Open Source tools, communities, and practices in AI.
https://allthingsopen.ai/ - KubeCon + CloudNativeCon Europe — March 23–26, 2026 (Amsterdam)
Global Open Source cloud-native and infrastructure communities.
https://events.linuxfoundation.org/kubecon-cloudnativecon-europe/ - Chemnitzer Linux-Tage — March 28–29, 2026 (Chemnitz)
A long-running, volunteer-organized Open Source and Linux event in Germany with a strong community and education focus, featuring talks, workshops, and meetups across a wide range of Free and Open Source Software topics.
https://chemnitzer.linux-tage.de/2026/en/
April
- PyTorch Conference Europe — April 7–8, 2026 (Paris)
Open Source AI frameworks and community collaboration.
https://events.linuxfoundation.org/pytorch-conference-europe/ - Legal and Licensing Workshop — April 15–17, 2026 (Berlin)
Deep dives into Open Source licensing and compliance.
https://pretalx.com/llw2026/ - Open Community Experience (OCX) — April 21–23, 2026 (Brussels)
Flagship conference from the Eclipse foundation about community management, governance, and collaboration practices.
https://www.ocxconf.org/event/2026/summary - LinuxFest Northwest — April 24–26, 2026 (Bellingham)
A long-running, volunteer-run Linux and Open Source conference with a strong grassroots community focus.
https://linuxfestnorthwest.org/
May
- GOSIM — May 5–6, 2026 (Paris)
Open Source innovation, systems thinking, and community.
https://gosim.org/ - PyCon US — May 13–19, 2026 (Long Beach)
A flagship conference from the Python Software Foundation about AI, data science, and the Python programming language.
https://us.pycon.org/2026/ - Open Source Founders Summit — May 18–19, 2026 (Paris)
Sustainability and leadership in Open Source companies and projects.
https://05f5.com/ - Open Source Summit North America — May 18–20, 2026 (Minneapolis)
Linux Foundation conference bringing together maintainers, enterprises, and foundations across the ecosystem.
https://events.linuxfoundation.org/open-source-summit-north-america/
June
- OW2con — June 2–3, 2026 (Paris)
Community-driven enterprise Open Source discussions.
https://www.ow2con.org/view/2026/ - Hong Kong Open Source Conference — June 6, 2026 (Hong Kong)
The Largest Annual Open Source Event in Hong Kong
https://hkoscon.org/2026/ - Open Source Summit India — June 16–17, 2026 (Mumbai)
Showcasing Open Source communities across India and APAC.
https://events.linuxfoundation.org/open-source-summit-india/ - DevConf.CZ — June 18–19, 2026 (Brno)
A free, community conference covering Open Source infrastructure, cloud, containers, and emerging technologies.
https://www.devconf.info/cz/ - UN Open Source Week — June 22–26, 2026 (New York City)
Open Source and digital public goods in global institutions.
https://www.unopensource.org/ - OpenSouthCode — June 26–27, 2026 (Málaga)
A community-led Open Source conference with a strong regional and grassroots identity, bringing together contributors, advocates, and local communities.
https://www.opensouthcode.org/
July
- Campus Party — Dates TBD (São Paulo)
A large technology and innovation festival with strong roots in hacker culture and community participation, offering a mix of talks, workshops, and collaborative activities around Open Source, digital culture, and emerging technologies.
https://brasil.campus-party.org/cpbr18/
August
- FOSSY — August 6–9, 2026 (Vancouver)
A community-focused Open Source conference emphasizing collaboration, inclusivity, and grassroots participation.
https://fossy.us - DEF CON — August 6–9, 2026 (Las Vegas)
Community-driven cybersecurity research and hacking culture.
https://defcon.org/ - Community over Code Asia — August 7-9 (Beijing)
The Asia edition of the ASF community-first conference emphasizing governance and collaborative development.
https://asia.communityovercode.org/ - COSCUP — August 8–9, 2026 (Taipei)
One of the largest volunteer-run Open Source conferences in Asia, bringing together diverse communities, projects, and grassroots contributors.
https://coscup.org/ - Open Source Summit Korea — August 11-12, 2026 (Seoul)
Bringing together Open Source maintainers, enterprises, and communities across Korea and the region.
https://events.linuxfoundation.org/open-source-summit-korea/ - OSCAFEST — August 14–16, 2026 (Nigeria, TBD)
Strengthening and celebrating African Open Source communities.
https://festival.oscafrica.org/ - FrOSCon — August 15–16, 2026 (Sankt Augustin)
A community-organized conference focused on Free and Open Source Software across Germany.
https://froscon.org/en/
September
- KubeCon + CloudNativeCon China — September 8–9, 2026 (Shanghai)
Cloud-native Open Source collaboration in APAC.
https://www.lfasiallc.com/kubecon-cloudnativecon-openinfra-summit-pytorch-conference-china/ - Open Source Congress — September 22-23, 2026 (Halifax)
The conference for Open Source nonprofits about policy, sustainability, cybersecurity, and society.
https://www.opensourcecongress.org/ - Open Expo Europe — September 22–24, 2026 (Madrid)
Open Source, innovation, and digital transformation.
https://openexpoeurope.com/ - TheDevConf — September 23–25, 2026 (São Paulo, Brazil)
A large, community-oriented Open Source conference covering software development, open technologies, and collaborative innovation across multiple tracks and technologies.
https://thedevconf.com/tdc/2026/index.html - Nerdearla — September 22–26, 2026 (Buenos Aires)
One of South America’s largest community-led tech events led by Sysarmy.
https://nerdear.la - DevConf.us — September 24-25, 2026 (Boston)
A community conference centered on Open Source, cloud, containers, and operating systems.
https://www.devconf.info/us/ - IndiaFOSS — September 26-27, 2026 (Bengaluru)
A large, community-led Open Source conference by FOSS United bringing together contributors, maintainers, startups, and organizations from across the Indian Open Source ecosystem.
https://fossunited.org/indiafoss
October
- Open Source Conference Luxembourg — October 7, 2026 (Luxembourg)
An European gathering focused on open-source innovation, digital sovereignty, AI, cybersecurity, and public-sector collaboration.
https://conference.opensource.lu/ - Open Source Summit Europe — October 7–9, 2026 (Prague)
A Linux Foundation flagship gathering for the global Open Source ecosystem.
https://events.linuxfoundation.org/open-source-summit-europe/ - Community over Code — October 11–14, 2026 (Glasgow)
The ASF flagship conference emphasizing community-first Open Source development.
https://communityovercode.org/ - Latinoware — October 14–16, 2026 (Foz do Iguaçu)
A long-running community-led conference focused on Free and Open Source Software, regional collaboration, and digital inclusion in Latin America.
https://latinoware.org/ - All Things Open — October 18–20, 2026 (Raleigh)
A broad, inclusive Open Source and open technologies conference.
https://2026.allthingsopen.org/ - PyTorch Conference North America — October 20–21, 2026 (San Jose)
Open Source AI frameworks and production use cases.
https://events.linuxfoundation.org/pytorch-conference-2026/ - Linux Foundation Legal Summit — October 21–22, 2026 (North America, TBD)
Legal, licensing, and policy discussions for Open Source.
https://events.linuxfoundation.org/lf-legal-summit/ - SeaGL — October 23-24, 2026 (Seattle)
A free, volunteer-run Open Source and open technologies conference.
https://seagl.org/ - Open Technology Research Symposium — October 26-27, 2026 (Barcelona)
Open Source policy and governance.
https://symposium.opentechresearch.org/ - Mozilla Festival (MozFest) — October 28–30, 2026 (Barcelona)
A global community festival exploring the intersection of the open internet, technology, society, and digital rights.
https://www.mozillafestival.org/ - LibrePlanet — Dates TBD (Location TBD)
A Free Software Foundation conference focused on software freedom and user rights.
https://libreplanet.org/
November
- Texas Linux Festival — November 6–7, 2026 (Austin)
A community-driven conference focused on Linux, Open Source infrastructure, and collaboration.
https://2026.texaslinuxfest.org/ - KubeCon + CloudNativeCon North America — November 9–10, 2026 (Salt Lake City)
The largest cloud-native gathering in the world.
https://events.linuxfoundation.org/kubecon-cloudnativecon-north-america/ - SFSCon — November 13–14, 2026 (Bolzano)
Open Source, society, and policy with a strong community focus.
https://www.sfscon.it/ - COSCon — November 14-15, 2026 (Hangzhou)
The Kaiyuanshe flagship conference championing Open Source communities and collaboration in China.
https://www.bagevent.com/event/8199016 - DPGA Annual Members Meeting — November 17–19, 2026 (Paris)
Digital public goods and Open Source collaboration.
https://amm26.digitalpublicgoods.net/
December
- Open Source Summit Japan — December 7–9, 2026 (Tokyo)
Connecting Open Source communities across Japan and APAC.
https://events.linuxfoundation.org/open-source-summit-japan/ - Open Source Experience — December 10–11, 2026 (Paris)
One of Europe’s largest Open Source events, closing the year.
https://www.opensource-experience.com/en/
These conferences collectively highlight the strength of community-led Open Source initiatives, the growing role of AI and cloud as shared infrastructure, and the increasing importance of governance, policy, cybersecurity, and sustainability. They offer some of the best opportunities in 2026 to learn, connect, and help shape the future of Open Source.
If you plan to attend any of these events, we invite you to visit opensource.org/events to see where the Open Source Initiative will be present throughout the year. Many of these conferences are opportunities to meet OSI staff and Board of Directors, connect with the community members, and engage in conversations about software freedom and the future of Open Source.
