Enter a place, street or address, select the country and click on the 'Geocode' button. You can then compare the several coordinates, feeds, and see the results on the map (each geocoder has a different color).
Note that this tool use the geocoding service that do geocoding on addresses (cities, administrative divisions, addesses, but not POIs) : don't provide pois (e.g : eiffel tower) or you will not get (logically) a relevant resultYou can also try the
autocomplete demo.