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Uniting over 12736 global volunteers to map rural Tanzania to help end FGM and aid community development

Will you help us?

Learn more about how you can help us put rural Tanzania on the map!

Start mapping Donate now




This site is no longer updated, please visit:

Crowd2Map Tanzania is a crowdsourced mapping project aiming to put rural Tanzania on the map. Since 2015, we have been adding schools, hospitals, roads, buildings and villages to OpenStreetMap with the help of volunteers worldwide and on the ground in Tanzania.

Our most recent efforts have been focused on fighting female genital mutilation (FGM) in the Serengeti region, and this excellent video by AJ+ news will tell you why:

Continue reading “OUR WORK”


This site is no longer updated, please visit:

You can map, validate, donate your old phone, donate via Global Giving, or volunteer to help in other ways!


We are mapping buildings, roads and villages via satellite imagery on OpenStreetMap – everyone can help. You need to register on, open HOT Tasking Manager and map one of these tasks on your computer.

All the instructions can be found in each task, and here is a helpful video to get you started.

If you are mapping locally in Tanzania, find mapping instructions here.

If you would like to be partnered with a remote mapper to help with fieldpapers, please get in touch.



All maps on OSM need to be validated – just so we don’t leave any mistakes. Any more experienced mapper can do it.

If you have done validation before, head straight to one of these tasks on the HOT Tasking manager, and get started!

If you have never done validating before, contact us and we will walk you through it.



Have an unused working phone hidden away in your drawer? We can use it!

Send us your old or new unused phones, and we will use them to train more local people in Tanzania to map their own communities.

Don’t let it go to waste! Donate it.

Donate your old phone


Any donation, big or small, goes a long way in Tanzania. We are using donations to buy phones, train community change agents and run mapping workshop locally in Tanzania.

Donate today via Global Giving!

Donate via Global Giving


Where we are?

You can see on this online map where all the remote mappers are – click on the dot to find out more. Please add yourself here.


If you have any other ideas or suggestions, please contact us! You can also request to join our Slack team here.


Blog of the Crowd2Map Tanzania – the crowdsourced mapping project to put rural Tanzania on the map.