pfSense vs OPNsense vs VyOS: Best Open Source Firewall Distros 2026

pfSense vs OPNsense vs VyOS: Best Open Source Firewall Distros 2026. pfSense vs OPNsense vs VyOS: Best Open Source Firewall Distros 2026. Published: April 3, 2026 | Category: Networking | Reading time: 15 min. A router/firewall is the gateway to your entire network — getting this right matters more than any other piece of infrastructure in your home lab. pfSense, OPNsense, and VyOS are the three titans of open-source firewall distros, each targeting a different audience and use case. Here's the complete comparison for 2026.