Background, examples and recipes for common use cases and questions
Overview / General Background
Why Open Data?What benefits does open data offer?
Geocoding vs GeosearchWhat is the difference between geocoding and geosearch?
Reverse GeocodingAll aspects of converting coordinates into location information
Comparing and testing geocoding servicesEvaluating geocoding services.
Geocoding and postal codesCommon questions and misunderstandings related to post codes.
Tips for using the OpenCage Geocoding API
Formatting your queryClean up your geocoding queries to get the results you want.
Speed up your geocodingRun your geocoding faster.
Geocoding large datasetsPoints to consider when processing massive volumes of locations.
Geocoding accuracyIs this the result you are looking for?
Limit API results to a certain country or regionOnly get the geocoding results you need.
Formatting AddressesPresenting location information in the format users expect.
Show an imprecise locationShow only a rough or imprecise location to preserve privacy.
Recipies for common situatons
Putting results on a mapHow to display geocoding results on a map.
Convert image GPS coordinates into location informationHow to turn image coordinates into useful location information.
Convert coordinates to countryDetermining which country coordinates are located in.
Determine the ISO codes for a locationMap coordinates or addresses to ISO 3166 codes.
Determine the county for an addressWhich county is this address in?
Migrating to OpenCage
Dealing with API keys
Other geocoding topics