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FOSS4G

Free and Open Source Software for Geospatial

Overview

About FOSS4G

The internationally acclaimed “Free and Open Source Software for Geospatial” conference is OSGeo’s annual global event, held in a different city each year since 2004. FOSS4G consistently draws over 1,000 attendees who are passionate about open source geospatial solutions.

The conference alternates between three geographic regions: Europe, North America, and worldwide locations, ensuring accessibility for our global community.

Upcoming

FOSS4G 2025 - Auckland, New Zealand

This year’s conference offers a unique opportunity for both newcomers and regular attendees to immerse themselves in the world of open geospatial. The venue provides a central location with proximity to Auckland’s business district and multiple accommodation options.

Visit FOSS4G 2025 Website{.button .is-osgeo-primary .is-medium}

Regional

Regional Events

In addition to the global conference, FOSS4G regional events are held throughout the year:

Regional Conferences

Events around the world

  • FOSS4G Europe - Annual European conference
  • FOSS4G North America - Annual North American conference
  • FOSS4G Asia - Regional Asian gathering
  • FOSS4G Oceania - Australia and Pacific region event
  • State of the Map - OpenStreetMap community conference
History

Past Global Conferences

YearLocationTheme
2024Belém, Brazil
2023Prizren, Kosovo
2022Firenze, Italy
2021Buenos Aires, ArgentinaVirtual
2020Calgary, CanadaVirtual
2019Bucharest, Romania
2018Dar es Salaam, Tanzania
2017Boston, USA
2016Bonn, Germany
2015Seoul, South Korea

Video archives are available for many past events on the OSGeo YouTube Channel.

Quick Facts

Founded: 2004

Annual Attendance: 1,000+

Locations: Rotating globally

Languages: English (primary)