Minimal Firewall is described as 'Portable Windows firewall frontend that alerts users to internet connections without requiring custom kernel modifications or disabling core isolation, striking a balance between TinyWall's security and SimpleWall's functionality' and is a Firewall in the security & privacy category. There are more than 25 alternatives to Minimal Firewall for a variety of platforms, including Windows, Linux, Android, iPhone and Android Tablet apps. The best Minimal Firewall alternative is Portmaster, which is both free and Open Source. Other great apps like Minimal Firewall are simplewall, GlassWire, Fort Firewall and NetGuard.