Regex Tester & Validator

This regex validates what3words-style addresses made of exactly three groups of one or more Unicode letters separated by literal dots, e.g. 'filled.count.soap'. Using \p{L} with the unicode flag, it matches letters from any language or script, enabling international support. It's a basic format check for what3words geolocation inputs in forms, though it cannot verify the words actually exist in the official what3words dictionary.