Volunteers mapping the world’s most vulnerable.

With Missing Maps, we aim to improve response to crises by providing better maps and data for NGOs.

Welcome to MapSwipe

MapSwipe is an open-source mobile app that is making mapping around the world more coordinated and efficient. We believe that anyone, anywhere should be able to contribute to the Missing Maps project. We aim to proactively map places in the world that are most vulnerable to crisis before a crisis happens. From the comfort of a mobile phone, MapSwipe allows any individual to support humanitarian response in three simple steps:

Step 1

Complete tasks by swiping through satellite imagery of areas that need mapping.

Step 2

The data is used by the Missing Maps project to map vulnerable areas in more detail.

Step 3

The maps help organisations coordinate humanitarian efforts and save lives.

Since its start in 2015, MapSwipe has scaled to more than 30,000 users mapping over 1,000,000 km2 (larger than the area of Egypt). MapSwipe is volunteer-driven and community-led. Any organization or mapping community can request to use MapSwipe to help with their activities on the ground.

How does MapSwipe work?

Within MapSwipe, users will soon be able to select to contribute towards three different project types. Each set of imagery is viewed by at least three different individuals to create a mechanism for internal validation of results. Learn more about each project type below and download the app to go through a complete tutorial before you begin swiping.


MapSwipe is part of the Missing Maps Project with large support from these organisations.

British Red Cross logo Heidelberg Institute for Geoinformation Technology logo
Humanitarian OpenStreetMap Team logo Doctors Without Borders logo