Browse free open source Firewall software and projects for Windows below. Use the toggles on the left to filter open source Firewall software by OS, license, language, programming language, and project status.
HTTP proxy to block ads and customize webpages
Manage port forwardings via UPnP
PeerGuardian - a privacy oriented firewall application
Bypass your ISP's firewalls and connect to the internet!
A java PCAP and DPI library
OPNsense is an open source, easy to use firewall and routing platform
Sonicwall Configuration File Reader
This Tool blocks a Mass of IP's via the Windows Firewall - IP Blocker
Firewall able to analyze visitor behavior & provide adapted response
A firewall for humans.
A client for the MikroTik RouterOS API protocol, written in PHP.
LumoGate is a Windows Wifi Hotspot Management Software
Next Generation Open Source Firewall
Firewall log analyzer