Geocoding
Convert addresses to coordinates and coordinates to addresses.
How to use
- Address → Coordinates tab: type an address and search.
- Coordinates → Address tab: enter a longitude and latitude to look up the nearest address.
- Batch Geocoding tab: paste or upload many addresses (one per line or as CSV) to geocode them in sequence.
- Defaults to the free public Nominatim service (rate-limited); open the settings panel to switch to Kakao/Naver/Mapbox with your own API key for higher limits and better Korean address matching.
Geocoding provider: OpenStreetMap (Nominatim) — Address and coordinate queries entered here are sent to this provider. Spatial data used by other tools stays in your browser.
Address
Map Preview
Address and Coordinate Search
Convert addresses to coordinates, coordinates to addresses, or geocode an address list in one place. Queries are sent to the external geocoding provider you select.
Dedicated URLs open each operation directly, while the existing /geocode?mode=reverse and /geocode?mode=batch state URLs continue to work.
Frequently asked questions
Is my search sent externally?
Yes — geocoding is the only tool here that calls an external provider (Nominatim, Kakao, etc.), so the address or coordinate you enter is sent to whichever provider is configured.
What if an address doesn't resolve?
Nominatim's coverage of Korean road-name addresses can be uneven — registering a Kakao, Naver, or VWorld key usually resolves it.