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
En la primera línea de la crisis climática: un viaje a la Amazonía Boliviana
En Sapecho, Bolivia, comunidades indígenas, guardaparques y bomberos se unen en un taller de mapeo abierto para prevenir incendios y gestionar el territorio con tecnología humanitaria.
OSM Building Dataset Complete for Conflict Affected Districts in Southern Lebanon
Accurate building footprints are needed to identify the impact of conflict on affected communities. After a dedicated volunteer effort, OSM building footprints are now the leading data source in the southern Lebanon districts of Sour, Bint Jbeil, Marjayoun, and El Nabatieh.
Building Bridges from Data to Action: HOT-CSOD at SRI2025 Africa Satellite Event
HOT and CSOD showcase their Pegasus project at SRI2025, connecting Caribbean resilience and open data with global sustainability innovation.
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.
Become a partner
