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OPNsense

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About

OPNsense is ranked #7 of 41 in operating systems on Inferse, made by OPNsense (Middelharnis, the Netherlands). It runs on API, Self-hosted, Web. There is a free plan.

Compared on operating systems

Free plan
Yesopnsense.org

Facts

Free plan
Yesopnsense.org · 21 Sept 2026
Product type
OPNsense is an open-source, user-friendly firewall and routing platform based on FreeBSD.opnsense.org · 1 Oct 2026
Firewall capabilities
The platform includes a stateful firewall with IPv4 and IPv6 support and live views of blocked or passed traffic.opnsense.org · 1 Oct 2026
VPN support
OPNsense integrates IPsec, OpenVPN, Tinc and WireGuard VPN technologies.opnsense.org · 1 Oct 2026
High availability
Automatic hardware failover with state synchronization is provided through CARP.opnsense.org · 1 Oct 2026
Intrusion prevention
Inline intrusion prevention uses Suricata and Proofpoint Emerging Threats Open rules, with optional ET PRO and ET PRO Telemetry rulesets.opnsense.org · 1 Oct 2026
API and extensibility
Its modular Model View Controller framework makes the product extensible and provides API functionality.opnsense.org · 1 Oct 2026
Security updates
OPNsense provides weekly security updates and follows a cycle of two major releases annually.opnsense.org · 1 Oct 2026
License
OPNsense is available under the Open Source Initiative approved 2-clause BSD license.opnsense.org · 1 Oct 2026
Installation architecture
The software setup and installation is available for the x86-64 microprocessor architecture only.docs.opnsense.org · 1 Oct 2026
Cloud platforms
Official setup guides cover AWS images, OVA images and an Azure Virtual Appliance.docs.opnsense.org · 1 Oct 2026
Authentication integrations
The platform supports LDAP and Active Directory, RADIUS, captive portal authentication and 802.1X through a plugin.opnsense.org · 1 Oct 2026
Security verification
OPNsense Business Edition undergoes LINCE security certification testing twice yearly with independent evaluator jtsec.docs.opnsense.org · 1 Oct 2026
Business support
The Business Support Subscription includes remote email and phone support, implementation help, migration assistance, troubleshooting and hot fixes, with two hours included.shop.opnsense.com · 1 Oct 2026
Project origin
OPNsense began as a fork of pfSense and m0n0wall in 2014, with its first official release in January 2015.opnsense.org · 1 Oct 2026
Target users
The Business Edition is intended for companies, enterprises and professionals seeking a selective upgrade path and additional commercial features.shop.opnsense.com · 1 Oct 2026

Company

Founded
2014opnsense.org · 28 Sept 2026
Headquarters
Middelharnis, the Netherlandsopnsense.org · 28 Sept 2026

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Where it ranks on Inferse

Sources