NetSpot Alternatives

inSSIDer Essential makes it easy to maintain small business WiFi.

Vistumbler is a wireless network scanner for Windows Vista and Windows 7. Features:

NinjaOne (Formerly NinjaRMM) provides remote monitoring and management software that combines powerful functionality with a fast, modern UI. Easily remediate IT issues, automate common tasks, and support end-users with powerful IT management tools.

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Wifi Analyzer is a handy tool which helps you to select a better channel for your wireless router.

Kismet is an 802.11 layer2 wireless network detector, sniffer, and intrusion detection system.

Official source of information about Netstumbler.

WiFi Explorer is a tool to scan, find, and troubleshoot wireless networks.

The Free Wi-Fi Coverage Mapping Site Survey Tool

With Homedale you can search for Wi-Fi / WLAN Access Points and monitor their signal strength.

WiFi Analyzer. See your WiFi signal on a visually comprehensive map and make sure you are getting the best of your network

Wireshark is a network protocol analyzer for Unix and Windows. It lets you capture and interactively browse the traffic running on a computer network.

Acrylic WiFi is a free to use WiFi scanning and channel scanning tool for the Windows operating devices only.

Wi-Fi site coverage survey and modelling application

NetSurveyor is an all one network diagnosing and troubleshooting tool for the Windows operating systems.