pfSense

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About

pfSense is an open-source firewall and router distribution built on FreeBSD and managed through a web interface. Its stateful packet inspection can block traffic according to policy, while routing options include policy-based routing, static routes, and concurrent IPv4 and IPv6 support. Security capabilities include IDS/IPS, Snort packet analysis, Suricata rules, IP block lists, and application detection. For VPNs, it supports IPsec, OpenVPN, and WireGuard for both site-to-site and remote access. The software can run on selected hardware, virtual machines, or cloud instances, and is available in the Azure and AWS Marketplaces, including their US GovCloud regions. Integrations named for dynamic DNS include Azure and name.com; RADIUS and LDAP can provide VPN authentication. The project source is under the Apache 2.0 license. The USB installer overwrites the full hard drive and does not support dual booting. pfSense Plus on third-party hardware starts at 129.00 USD per year; on Netgate appliances it starts at 189.00 USD per once, with pfSense Plus included at no charge with an appliance.

Who it is for

It suits home and remote workers, businesses, government, education, and service providers needing firewall, routing, or VPN capabilities. Teams can deploy it on supported hardware, virtual machines, or cloud instances.

What is good

Open-source source code under Apache 2.0
Supports policy-based and static routing
Includes IDS/IPS and multiple VPN protocols
Runs on hardware, VMs, and cloud instances

What to know first

USB installer overwrites the entire hard drive
USB installer does not support dual booting
Third-party hardware plan starts at 129.00 USD per year

Verdict

pfSense combines firewall, routing, intrusion prevention, and VPN functions in a FreeBSD-based distribution. Check the installation constraints and deployment plan before choosing where to run it.

Compared on business VPN software

Free plan: Yespfsense.org

Facts

Purpose: pfSense is a free, open-source FreeBSD-based firewall and router distribution managed through a web interface.pfsense.org · 2 Oct 2026
Firewall: Its firewall uses stateful packet inspection and can block traffic based on policy matches.netgate.com · 2 Oct 2026
Routing: Listed routing features include policy-based routing, static routes, and concurrent IPv4 and IPv6 support.netgate.com · 2 Oct 2026
Attack prevention: The feature list includes IDS/IPS, Snort packet analysis, Suricata rules, IP block lists, and application detection.netgate.com · 2 Oct 2026
VPN: It supports IPsec, OpenVPN, and WireGuard, including site-to-site and remote-access VPN capabilities.netgate.com · 2 Oct 2026
Integrations: The feature page names Azure and name.com as dynamic DNS providers, and RADIUS/LDAP as VPN authentication sources.netgate.com · 2 Oct 2026
Deployment: The software can run on selected hardware, virtual machines, and cloud instances; the project says it is the software portion of the firewall.pfsense.org · 2 Oct 2026
Cloud availability: The getting-started page says pfSense is available in the Azure and AWS Marketplaces, including their US GovCloud regions.pfsense.org · 2 Oct 2026
Security process: Netgate publishes security advisories and asks vulnerability reports to include a description, affected product and versions if known, and any plausible workaround.netgate.com · 2 Oct 2026
Support: Netgate Global Support covers installation, deployment, and configuration issues, and is available for self-installed and virtual pfSense software.pfsense.org · 2 Oct 2026
Limits: The download guide says the USB installer overwrites the entire hard drive and does not support dual booting with another operating system.pfsense.org · 2 Oct 2026
Intended users: Netgate identifies home and remote workers, businesses, government, education, and service providers as users of pfSense Plus.netgate.com · 2 Oct 2026
Project license: The pfSense project source code is distributed under the Apache 2.0 open-source license.pfsense.org · 2 Oct 2026