FOSS4G is the world’s largest conference dedicated to open-source geospatial software, organized by the OSGeo Foundation. In 2026, this global FOSS4G event will be held in Hiroshima, Japan.

Geospatial technology empowers communities to address real-world challenges such as disaster response, urban planning, and environmental resilience.

At FOSS4G 2026 Hiroshima, we will further highlight the humanitarian applications of open-source geospatial technologies — from supporting refugees to preserving cultural memory.

As a "City of Peace and Reconstruction", Hiroshima is an ideal place to explore how technology can foster empathy, inclusion, and international collaboration.

And of course, we invite you to enjoy Hiroshima’s unique culture and delicious cuisine to the fullest!

Tickets

Event map

Schedule

August 30th, 2026

9:00am – 5:00pm JST
Workshop Day 1

August 31st, 2026

9:00am – 5:00pm JST
Workshop Day 2

September 1st, 2026

9:00am – 6:00pm JST
Conference Day 1

Conference Day 1 on 1st September 2026

12:00pm – 1:00pm JST
Business to Business

The Business to Business event for FOSS4G networking.

7:00pm JST
Icebreaker

September 2nd, 2026

9:00am – 6:00pm JST
Conference Day 2

Conference Day 2on 2nd September 2026

7:00pm JST
Gala dinner

September 3rd, 2026

9:00am – 6:00pm JST
Conference Day 3

Conference Day 3 on 3rd September 2026