OPNsense is an open source easy-to-use and easy-to-build FreeBSD based firewall and routing platform. OPNsense includes most of the features available in expensive commercial firewalls, and more in many cases. It brings the rich feature set of commercial offerings with the benefits of open and verifiable sources.
Give users, developers and businesses a friendly, stable and transparent environment. Make OPNsense the most widely used open source security platform. The project’s name is derived from open and sense and stands for: “Open (source) makes sense.”