ZoneAlarm Free Firewall - Personal Firewall software
TinyWall - Lightweight and non-intrusive firewall
GlassWire - Visualize network activity in detail, get notified when new apps access the network, look out for...
Comodo Firewall - Comodo Firewall Pro - Secure your system against internal attacks such as Trojan viruses /...
Windows Firewall Control - Windows Firewall Control is not the built in firewall system in the Windows operating systems.
Gufw - Gufw is an easy, intuitive way to manage your Linux firewall.