There are many alternatives to Firewall Builder for Windows and since it's discontinued a lot of people are looking for a replacement. The best Windows alternative is FirewallFabrik, which is both free and Open Source. If that doesn't work for you, our users have ranked more than 10 alternatives to Firewall Builder, but unfortunately only two of them are available for Windows. If you can't find an alternative you can try to remove all filters.
Modern fwbuilder successor: Qt GUI for managing iptables/nftables policies. Centralized policy DB with reusable objects, scales to hundreds of firewalls, generates deployment-ready shell scripts.
Centralized manager for Open Source firewalls
Automate certain administrative tasks All your firewalls are accessible in 1 click Auto-connect your firewalls to DynFi Manager pfSense® and OPNsense® compatible manager.
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