what3words provides a precise and incredibly simple way to talk about location. We have divided the world into a grid of 3m x 3m squares and assigned each one a unique 3 word address.

Better addressing enhances customer experience, delivers business efficiency, drives growth and supports the social and economic development of countries.



Mobile app

Our free app for iOS and Android enables people to find, share and navigate to 3 word addresses on the go.

Photo App

3WordPhoto allows you to label photos with a 3 word address so that your friends and followers can see exactly where a photo was taken.

Online API

The API is a few lines of code that add 3 word address functionality to existing apps, maps or websites.

Online map

The free map tool at map.what3words.com lets people discover and share 3 word addresses quickly and easily.

Mobile SDK

This package provides the same service as the API, but can be installed on a smartphone and works entirely offline.

Server SDK

Businesses, NGOs and governments can use this service to run the what3words system from their own servers.

E-commerce Plugins

Plugins for all major e-commerce platforms make it simple to add a 3 word address field to an online checkout.

Batch conversion

This tool offers conversions from coordinates to 3 word addresses and vice versa.

GIS Plugins

All the features of what3words can be used via plugins for GIS platforms.

Excel add-in

This add-in provides a simple way to access the API functionality within Microsoft Excel using a range of what3words-specific functions.