Setting up a Wi-Fi network can be a complicated task with a lot of unknowns. For instance, where exactly will your phone or laptop pick up the strongest, or weakest, signal within your home or office? Enter NetSpot, a free service for Mac devices that creates a complete map of a given Wi-Fi network to assess the quality of its connections. Users simply walk from position to position, marking spots every few feet, to scan the area for available Wi-Fi signals. NetSpot then generates a heat map, with red representing strongest signals and indigo indicating the weakest. While the free version has some limitations when compared to the paid options, readers who struggle to know where best to place their work stations will find that NetSpot provides extremely useful information.