Windows

Acrylic Wi-Fi Home

Tarlogic Security

WiFi scanner and network analyzer

Advanced IP Scanner

Famatech

Fast local network scanner

Angry IP Scanner

Angry Ziber

Fast cross-platform IP and port scanner

Connectify Hotspot

Connectify Inc.

Turn PC into a Wi-Fi hotspot

Fing

GlassWire

SecureMix LLC

Network activity monitor and firewall

NetLimiter

Locktime SW

Bandwidth control per application

NetSpot

NetStat Agent

Nsasoft

Network connections monitor tool

NetWorx

SoftPerfect

Bandwidth usage monitor and traffic analyser

Nmap

Gordon Lyon

Network discovery and security auditing

PRTG Network Monitor

Paessler AG

Network monitoring up to 100 sensors free

SolarWinds NPM

SolarWinds

Enterprise network performance monitor

WiFi Analyzer (Wi-Fi Commander)

Matt Hafner

Wi-Fi signal strength analyser for Windows

WifiInfoView

NirSoft

Show wireless networks around you

Wireshark

Wireshark Foundation

Network protocol analyser and sniffer

inSSIDer

MetaGeek

WiFi troubleshooting and channel optimiser