Endian Firewall Community is described as '(EFW) is a "turn-key" linux security distribution that turns every system into a full featured security appliance with Unified Threat Management (UTM) functionality' and is an app in the Security & Privacy category. There are more than 10 alternatives to Endian Firewall Community for a variety of platforms, including Linux, Self-Hosted solutions, Windows, BSD and VirtualBox. The best alternative is pfSense, which is both free and Open Source. Other great apps like Endian Firewall Community are OPNsense (Free, Open Source), NethServer (Free, Open Source), ClearOS (Free, Open Source) and Sophos XG Firewall (Free Personal).
OPNsense includes most of the features available in expensive commercial firewalls, and more in many cases. It brings the rich feature set of commercial offerings with the benefits of open and verifiable sources.
NethServer is a CentOS-based Linux distribution for servers. The product's main feature is a modular design which makes it simple to turn the distribution into a mail server and filter, web server, groupware, firewall, web filter, IPS/IDS or VPN server.
ClearOS is a family of operating systems for the enterprise, small business, and home. There are three editions to choose from depending on your needs and suitable to your abilities. They are: ClearOS Enterprise, ClearOS Home, and ClearOS Core.
Sophos UTM integrates complete security software within a single appliance. Choose only the protection you need when you need it. And deploy it on the platform that best fits your business: software, hardware or virtual appliance.