Download Packet Hound

PacketHound is an outbound firewall for Windows 10 and 11 that asks for a decision the first time an application tries to reach the internet. The prompt shows the application, its publisher, the destination and the port. The answer, Allow or Block, is stored as a Windows Firewall rule for the whole app or for a single address, host or domain, and applies permanently or until the app quits. Windows components pass automatically.