Alternatives to pfSense
FreeBSD-based firewall and router distribution with a web interface. The listings below can replace it for an important use case. Each note says what changes if you switch.
The original
pfSense
FreeBSD-based firewall and router distribution with a web interface.
Replacements
Listings that take over the same core job as pfSense.
OPNsense
An open-source firewall and routing platform based on FreeBSD that you install on your own hardware.
OPNsense is a fork of pfSense on a current FreeBSD base with regular releases and a public roadmap, managed through a similar web interface.
IPFire
A hardened Linux-based firewall distribution with VPN support, network segmentation and a web management console.
IPFire switches to a hardened Linux base, which broadens hardware support, with WireGuard, OpenVPN and IPsec out of the box and zone-based segmentation.
VyOS
An open-source network operating system that combines routing, firewall and VPN functions in one platform.
VyOS offers routing, firewall and VPN on bare metal and cloud marketplaces, aimed at network engineers, with LTS builds only through a support portal.
OpenWrt
Open-source Linux-based firmware that turns consumer routers into configurable network gateways.
OpenWrt runs on supported consumer routers as Linux firmware instead of a dedicated machine, though flashing firmware carries a risk of bricking the router.
DD-WRT
Third-party open-source router firmware that adds VPN, QoS and advanced routing to consumer routers.
DD-WRT replaces consumer router firmware to add VPN, QoS and advanced routing, running on supported router models rather than a dedicated firewall box.
Similar software
Related functionality, not a direct replacement.
Technitium DNS Server
A self-hosted DNS server that blocks ads network-wide, hosts your own zones, and encrypts upstream queries.
Pomerium
An identity-aware reverse proxy that gives secure access to internal applications without a VPN.
NetBox Community
Document network devices, addresses and connections on your own server.
HAProxy
High-performance TCP and HTTP load balancer and proxy.
Security Onion
A free Linux distribution for network security monitoring, packet capture, detection and threat hunting.
ntopng
Web-based network traffic probe that shows real-time and historical flows by host, protocol and application.