What we do Our work Get Involved
Close
    Search for HOT projects, news, people and jobs.
HOT IS AN INTERNATIONAL TEAM DEDICATED TO HUMANITARIAN ACTION AND COMMUNITY DEVELOPMENT THROUGH OPEN MAPPING.

HOT IS AN INTERNATIONAL TEAM DEDICATED TO HUMANITARIAN ACTION AND COMMUNITY DEVELOPMENT THROUGH OPEN MAPPING.

LEARN WHAT WE DO    Start mapping   
Mapping for Sherni River Museum Project

PROJECT: Mapping for Sherni River Museum Project

slide3

PROGRAM: Mapping for Climate-Ready Cities - Bangladesh and 12 other countries

On the Front Line of Climate Change: End-to-End Open Mapping Tech for Wildfires

TECH UPDATE: On the Front Line of Climate Change: End-to-End Open Mapping Tech for Wildfires

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

7 Aug 2025

Mapping from Exile: Nisreen Mahmoud’s Journey to Support Sudan’s Recovery through Community and Open Data

GIS expert Nisreen Mahmoud uses open mapping to support Sudan’s recovery from exile, empowering communities through data, trust, and resilience.

Sudan - Mariana Marín

5 Aug 2025

Mapeo de Cholets, o cómo crear una comunidad mapeadora en El Alto, Bolivia

Explora cómo el mapeo de cholets en El Alto unió comunidad, cultura y datos abiertos, a través de ChatMap, para visibilizar una identidad urbana única.

Bolivia - Juan Arellano Valdivia

29 Jul 2025

Mapping Youth Mental Health Services in Kenya for International Youth Day 2025

In celebration of International Youth Day 2025 under the theme 'Youth Advancing Multilateral Cooperation Through Technology and Partnerships', we would like the youth contributors in Kenya to lead a community mapping initiative focused on youth-friendly mental health services.

Global

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.

Learn more

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