OpenSnitch is a GNU/Linux port of the Little Snitch firewall
Simple tool to configure Windows Filtering Platform (WFP)
LuLu is the free open-source macOS firewall
A simple way to block access to the internet per app
A firewall for humans.
Firewall able to analyze visitor behavior & provide adapted response
AgentGuard is a firewall for AI agents
OWASP Coraza WAF is a golang modsecurity compatible firewall library
HTTP proxy to block ads and customize webpages
Manage port forwardings via UPnP
Robust and flexible VPN network tunnelling
OpenWRT ©VMWare ©ESXi Appliance NAT router
Web application firewall in C language uses libevent
Tool to ping hosts through firewalls blocking ICMP
An iptables IPv4 firewall and traffic shaping program
OWASP ModSecurity Core Rule Set (CRS) Project
This Tool blocks a Mass of IP's via the Windows Firewall - IP Blocker
ipset set listing wrapper script
LumoGate is a Windows Wifi Hotspot Management Software