Gufw - Gufw is an easy, intuitive way to manage your Linux firewall.
TinyWall - Lightweight and non-intrusive firewall
Windows 10 Firewall Control - Windows 10 Firewall Control: simple and exhaustive solution for applications network activity controlling and monitoring.
Emsisoft Online Armor Firewall - Emsisoft Online Armor Firewall is a freemium online firewall protection system by the Emsisoft that is based on the own independent protection technology of the Emsisoft.
Windows Firewall Control - Windows Firewall Control is not the built in firewall system in the Windows operating systems.
Firestarter - Firestarter is an Open Source visual firewall program.