Support HOT's work - Donate today!

When disaster strikes, HOT mobilizes our global network of thousands of volunteers who work together to map the impacted area in OpenStreetMap. We don’t only do it after disaster: every day, HOT volunteers work tirelessly to put the most vulnerable people and places on the map before disaster strikes. These maps contribute to saving lives in emergency.

Thank you for supporting this critical work. When you give to HOT, your donation is used where it's needed most to carry out our humanitarian mission.

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To donate via wire transfer please email

To donate via mailing a check please use the paper form.

Thank you! Your donation will help us continue the live-saving work of emergency mapping!