491K
Total Mappersⓘ Total number of Mappers using HOT Tasking Manager - as of May 2024
260M
Total Map Editsⓘ Total number of edits mapped using HOT Tasking Manager - as of May 2024
156.4M
Buildings Mappedⓘ Total number of buildings mapped using HOT Tasking Manager - as of May 2024
3.4M
Roads Mapped (KM)ⓘ Total length of roads mapped using HOT Tasking Manager - as of May 2024
Updates
Call for Advanced Mappers: Post‑Disaster Mapping in Mokwa
A devastating flash flood recently tore through Mokwa, leaving homes destroyed and lives upended. We’re calling on advanced mappers to help tag building damage and update infrastructure using new satellite imagery to enhance analysis and impact.
Humanitarian GIS Reflections in Mid-2025: A Collaborative Approach to Geospatial Data
Amid severe funding cuts in 2025, humanitarian GIS practitioners are prioritizing collaboration to avoid duplication and leverage shared resources like OSM. Spatial data—particularly OSM’s open, community-driven model—offers a resilient framework for coordinated crisis response, combining local knowledge with global standards.
Demystifying Expert Mapping Through Modeling
Tim DeWinter, our Open Mapping for All Coordinator, invites you to explore how modeling can make expert OpenStreetMap skills more accessible to beginners and foster a stronger mapping community.
Our Impact
HOT's work is global in scale and contributes to the achievement of the Sustainable Development Goals (SDGs). Our Monitoring and Evaluation framework is constantly evolving to ensure tangible and measurable impact. Check out our core impact areas and learn more about where we're making a difference.
Tools & Data
Access free, open source tools for community mapping. Export data from OpenStreetMap for humanitarian and development programs.
View the tools
Community & Events
Learn about the community and the latest events — especially about the Open Summit 2023, a decentralized, year-long program of 13 global, regional, and local conferences.
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Partnerships
Want to know more about ways you can partner with HOT? Start creating and supporting the #GlobalGoals with free, open map data through becoming a partner.
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