Visualize MongoDB geo query explain() result. Just copy and paste .explain() result of geo query. There is no hosted service for this, but if you clone the repository then:

1. Set up a virtual environment for python
2. Install flask

python3 -m pip install flask

3. launch the server:

python3 server.py 

4. Connect to localhost:5000

You can use the tool.

S2 geospatial library is compiled to asm.js by mongo-s2 and used to translate geo hash.