Encode latitude/longitude to a geohash or decode a geohash back to coordinates online.
Encode a latitude/longitude pair into a geohash string, or decode a geohash back to coordinates. Leave the hash field blank to encode; fill it to decode.
A short string that encodes a location; shared prefixes mean nearby places, which makes geohashes great for spatial indexing and proximity search.
The number of characters: more characters = a smaller, more precise cell. 9 characters is roughly a few metres.