mobilitytrails.org

is a browser-based GPS location tracking application that can track the location of any human holding any modern GPS-enabled smartphone.
You can use your smartphone to track not only where your footsteps get you, but you can also track your location while you are boarded
on a moving vehicle at zero altitude (e.g., your car, a bus, or your scooter).

Through mobilitytrails.org, you can track, store, and download your stored routes in KML format, without requiring you to run a local
application on your device.