Free, up-to-date maps are a critical resource when relief organizations are responding to disasters or political crises. The Humanitarian OpenStreetMap Team (HOT) creates and provides those maps.

Collaborative Maps for Humanitarian Aid

When major disaster strikes anywhere in the world, HOT rallies a huge network of volunteers to create, online, the maps that enable responders to reach those in need.


HOT assists international organizations as well as governments and first responders with mapping needs during disaster. Additionally, HOT participates in various long-term projects with our partners.

Technical Projects

HOT develops several open source programs and applications to leverage collaborative mapping and the use of new technologies in the field of geographic information for humanitarian aid. Check them out!

Community Development

HOT supports community mapping projects around the world and assists people to create their own maps for economic development and disaster preparedness. These local capacities enable people to take control of their own development.

HOT is a worldwide nonprofit organization, registered in the United States [501(c)(3)] with offices in Washington D.C., USA and Jakarta, Indonesia.