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.




OPNsense is the most popular Self-Hosted alternative to Forefront Threat Management Gateway .
OPNsense is the most popular Open Source & free alternative to Forefront Threat Management Gateway .
- OPNsense is Free and Open Source
- OPNsense is Privacy focused and Lightweight












































