We've made digital security accessible to everyone. With our free OPNsense® platform, you get all the features of expensive commercial firewalls and more. Enjoy open and verifiable sources in a product …

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.

The minimum specification to run all OPNsense standard features that do not need disk writes, means you can run all standard features, except for the ones that require disk writes, e.g. a caching proxy …

OPNsense installation images are provided on a scheduled basis with major release versions in January and July. More information on our release schedule is available from our package repository, see …

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 …

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® 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 …

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.

Dec 11, 2025 · OPNsense 25.7.7 released Thu, 06 Nov 2025 14:21:11 GMT Hi again, This update ships a number of third party security updates, firewall live log improvements based on user feedback from …

For more than 9 and a half years now, OPNsense is driving innovation through modularising and hardening the open source firewall, with simple and reliable firmware upgrades, multi-language …