pfSense is an open-source firewall and router software based on FreeBSD. It provides advanced features and flexibility for network security and routing.
Free (Community Edition), Paid support options available
Best OPNsense Alternatives ranked by AI · updated Aug 2026
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OPNsense is an open-source firewall and router platform based on FreeBSD, administered through a web interface. It is aimed at network administrators who need VPNs, intrusion prevention, routing, reporting, and centrally managed perimeter security.
Top 6 OPNsense alternatives
ClearOS is an operating system for your Server, Network, and Gateway systems.
Untangle NG Firewall is a comprehensive network security solution that includes firewall, web filtering, intrusion prevention, VPN, and more.
Starting at $50/month
Untangle is a comprehensive network security solution that provides firewall, web filtering, and other security features.
Starting at $50 per month
Endian Firewall Community is an open-source Unified Threat Management (UTM) firewall that provides essential security features for networks. It includes firewall, VPN,...
VyOS is an open-source network operating system based on Debian GNU/Linux. It provides a fully featured routing engine that is suitable for...
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