#45 in Application SecurityUpdated 2026-08

OPNsense

by OPNsense · Open source firewall and routing platform built on FreeBSD

25.8 — BenchRank score out of 100

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Overview

OPNsense is an open source firewall and routing platform built on FreeBSD 15.1. It offers a stateful IPv4/IPv6 firewall, multi-WAN with load balancing and failover, VPN via IPsec, OpenVPN, Tinc and WireGuard, and inline intrusion prevention using Suricata with Emerging Threats Open rules. Reporting uses RRD graphs and NetFlow analysis.

Best for: Teams and home users wanting a self-hosted open source firewall and router on their own hardware
Pricing: The OPNsense platform is free to download; a paid Business Edition and official hardware are sold, but no prices are shown in the captured text.

Strengths and trade-offs

Strengths

Stateful IPv4 and IPv6 firewall with live traffic view
IPsec, OpenVPN, plus pluggable Tinc and WireGuard VPN
Hardware failover via CARP with state synchronisation
Simplified 2-clause BSD/MIT licence with open sources

Trade-offs

WAF, OPNcentral and GeoIP database are Business Edition only
Self-hosted: you supply, run and maintain the hardware
ET PRO ruleset and Q-Feeds threat intel are paid subscriptions
No Business Edition price shown on the captured pages

How this score is made up

Each dimension is scored out of 100 and combined into the headline score using fixed weights.

MCP support: 0 out of 100
API quality: 0 out of 100
Documentation: 80 out of 100
Agent friendliness: 53 out of 100
Changelog: 0 out of 100
Marketing site structure: 45 out of 100
Operational trust: 0 out of 100

Measured, but not part of the score

Useful to know, but not a mark for or against the product — so these do not affect the ranking.

Openness: 60 out of 100
Maintenance: 100 out of 100

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