Ikea, Macy’s and Home Depot are piloting Google’s new indoor mapping functionality to help shoppers find products in stores. Shoppers with Android smartphones will be able to use the tool, which forms part of the newly released Google Maps 6.0. The functionality works like Google’s outside mapping service and can identify which floor a person is on in a store.

Google will receive detailed floor plans from retailers via a self-service upload tool. Inside the shop the service will rely on signals from Wi-Fi and mobile phone networks to show the customer’s location. GPS coordinates can be mapped in a store. Japanese department store Marui has also launched the tool.