Unfortunately, there aren’t any online WiFi stumblers because, in order to use a website, you already need to be connected to a router.
LizardSystems Wi-Fi Scanner This easy-to-use wireless network scanner is free for personal use and offers essential information on each channel that shows activity.
This is a straightforward tool that requires no training to use. NetStumbler EDITOR’S CHOICE This free tool provides wireless channel tracking and information about the AP that is managing signals on them.Here is our list of the best Wifi Stumblers for Windows and Mac: So, WiFi stumbler provides two services: an assistant to find an uncluttered wireless network and provide information to help tune your own router. With this information, you can choose a less crowded signal and set your router to a clearer channel.
It can also show how many other users currently use the network. A WiFi stumbler detects the available channels and signal strength of wireless routers within range.