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.




The best Router Custom Firmware alternative to pfSense is OPNsense, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 25 alternatives to pfSense and three of them are Router Custom Firmwares so hopefully you can find a suitable replacement. Other interesting Router Custom Firmware alternatives to pfSense are MikroTik RouterOS and ROOTer.
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.




Linux-based system converts standard PCs into customizable routers, featuring advanced firewall, VPN server and client, bandwidth control, QoS, wireless AP, captive portal, remote management, industry protocol support, automation, and scalable licensing for network needs.

The ROOter Project was created to allow the use of USB, PCie and M.2 Cellular modems in routers that don't have this capability using factory firmware.

Read this: https://teklager.se/en/pfsense-vs-opnsense/ Especially the part under "Politics, drama & bad blood between the two projects"