FOSS4G 2026

FOSS4G 2026 is the 2026 global edition of the Free and Open Source Software for Geospatial (FOSS4G) conference, organized by the Open Source Geospatial Foundation. It will be held in Hiroshima, Japan, bringing together developers, users, researchers, and organizations around open-source geospatial technology. The event emphasizes geospatial tools for real-world challenges and coincides with the 20th anniversary of OSGeo-organized FOSS4G conferences.

Venues and setting

The main conference will be at the International Conference Center Hiroshima, in Hiroshima’s Peace Memorial Park area. Workshops are planned at the RCC Bunka Center, with community sprints and events at venues around central Hiroshima. Hiroshima’s history as a City of Peace provides a symbolic setting for themes of resilience, humanitarian mapping, and international collaboration.

Themes and focus

The 2026 edition highlights “Bridging Geospatial Technology and Humanity,” focusing on how open-source geospatial tools support disaster response, urban planning, environmental resilience, humanitarian efforts, and cultural preservation. The program typically showcases projects around tools like QGIS, PostGIS, GeoServer, PROJ, GDAL, and related ecosystems, along with open data and interoperability standards.

Community and participation

FOSS4G conferences usually attract hundreds to over a thousand participants from government, academia, NGOs, and industry worldwide. Hiroshima’s Local Organizing Committee (LOC) is recruiting volunteers for logistics, sponsorship, outreach, and international support, and calls for proposals and registration are scheduled through early 2026. Awards such as the Sol Katz Award for Geospatial Free and Open Source Software will be announced during the event.