CitySDK

Convert British OSGB36 easting and northing (British National Grid) to WGS84 latitude and longitude.

Create maps and markers for anything.

Brazil RESTful API to find information about streets, zip codes, neighborhoods, cities and states.

Get your visitor's country from their IP.

World countries, states, regions, provinces, cities & towns in JSON, SQL, XML, YAML, & CSV format.

API explorer that gives a query URL with a JSON response of locations and cities.