https://cimera42.github.io/SunnySide/
Getting sun in your eyes while travelling gets annoying, so this tool lets you pick a route and see which side gets the most sun.
Uses Open Street Maps and SunCalc to determine the side (left or right) that recieves the least sun over the journey. This is then shown on a map, highlighting areas in red which would still receive sun.
Feel free to create an issue suggesting any changes.