OPNsense® is an open source, feature rich firewall and routing platform, offering cutting-edge network protection. We've made digital security accessible to everyone. With our free OPNsense® platform, …

Depending on your hardware and use case different installation files are provided to Install OPNsense®. Select the right version for your system and download the best open source firewall.

Welcome to OPNsense’s documentation! 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 …

OPNsense® is an open-source, user-friendly firewall and routing platform that combines the extensive features of commercial products with the advantages of open and verifiable sources.

Thank you for choosing OPNsense®. Follow these steps and head to our documentation for further configuration. Select the right hardware for your setup before installing OPNsense®.

OPNsense® is an open-source, user-friendly firewall and routing platform that combines the extensive features of commercial products, ranging from a stateful firewall to web application control and …

OPNsense installation boot process allows us to run several optional configuration steps. The boot process was designed to always boot into the live environment, allowing us to access the GUI or …

Mar 16, 2026 · Re: OPNsense 25.10.2 business edition released Mon, 16 Mar 2026 09:35:01 GMT A hotfix release was issued as 25.10.2_4: o unbound: fix blocklist add in reporting page following …

Welcome to OPNsense’s documentation! 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 …

Installation and setup When your device wasn’t shipped with OPNsense® pre-installed, you can find how to install it yourself and which hardware platforms are supported in this chapter.