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
Bypass your ISP's firewalls and connect to the internet!
A client for the MikroTik RouterOS API protocol, written in PHP.
This Tool blocks a Mass of IP's via the Windows Firewall - IP Blocker
Firewall log analyzer
A simple, portable port scanner
Next Generation Open Source Firewall
Anti Spam SMTP Gateway
Program to block League of Legends contacts.
One of the most advanced DNS Proxy and DNS Firewall in one product.
Prevent and Protect Your HTML5 Video, Music , Audio From Download Free