PacketHound · Free outbound firewall for Windows 10 & 11

PacketHound is a free, open-source outbound firewall application for Windows 10 and 11 that builds on top of the native Windows Firewall. It prompts users to allow or block outgoing connection attempts by third-party apps while automatically permitting standard Windows components. The tool operates without custom kernel drivers or background services and stores rules directly in standard Windows Firewall settings. Open article →