BenchRank
#44 in Application SecurityUpdated 2026-08

OPNsense

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

BenchRank score

32.4 — BenchRank score out of 100

Screenshots of OPNsense

Homepage · OPNsense

Homepage of OPNsense

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 OPNsense markets itself

A structured read of the promise, proof and page design on OPNsense’s captured homepage.

Homepage capture

“OPNsense® is an open source, feature rich firewall and routing platform, offering cutting-edge network protection.”

  • Angle: Open source / ownership
  • Hero: Product screenshot

Pricing

Published plans and prices from OPNsense’s own pricing page.

How this score is made up

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

  • MCP support

    Whether an agent can drive the product through the Model Context Protocol, and how much setup that takes.

  • API quality

    Public API surface: machine-readable spec, official SDKs, documented auth, errors, rate limits and versioning.

  • Documentation

    Publicly reachable docs — coverage, freshness, code samples and machine readability.

  • Agent friendliness

    How readable the site is to an automated client: llms.txt, structured data, server-rendered content, crawler access.

  • Changelog

    A public, dated record of what shipped and when — the clearest signal that a product is still alive.

  • Marketing site structure

    Whether the site answers a buyer's questions: clear positioning, the pages that matter, and accessibility.

  • Page speed

    How fast the site loads for real visitors: Chrome UX Report 75th-percentile LCP, INP and CLS, with a Lighthouse mobile run standing in where a site has too little traffic for field data.

  • Operational trust

    Status page and incident history, security disclosure, compliance and data-processing documentation.

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

    Source availability, self-hosting, data export and open standards. Scored and shown, but not part of the composite — paid SaaS is not worse for being paid SaaS.

  • Maintenance

    Release cadence and repository activity. Scored and shown, but not part of the composite — it is only measurable for open repositories.

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Where this comes from

The OPNsense pages BenchRank reads when it scores the product — its documentation, release notes, status and security pages, and its repository where there is one.

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