The best Operating System alternative to pfSense is IPFire, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 25 alternatives to pfSense and five of them are Operating Systems so hopefully you can find a suitable replacement. Other interesting Operating System alternatives to pfSense are ClearOS, VyOS, OpenContrail and X-wrt.
IPFire is a server distribution with intended to use as a firewall. It focuses on flexibility, and scales from small to middle sized business networks and home networks.
Almost everyone thinks IPFire is a great pfSense alternative.
IPFire is the most popular Linux alternative to pfSense.
ClearOS is a family of operating systems for the enterprise, small business, and home. There are three editions to choose from depending on your needs and suitable to your abilities. They are: ClearOS Enterprise, ClearOS Home, and ClearOS Core.
VyOS is a community fork of Vyatta , a Linux-based network operating system that provides software-based network routing, firewall, and VPN functionality.
OpenContrail is an Apache 2.0-licensed project that is built using standards-based protocols and provides all the necessary components for network virtualization–SDN controller, virtual router, analytics engine, and published northbound APIs.
OpenWrt Project is a Linux operating system targeting embedded devices. Instead of trying to create a single, static firmware, OpenWrt provides a fully writable filesystem with package management. This frees you from the application selection and configuration provided by the...
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