opnsense.org

OPNsense

Who runs OPNsense, what it tracks and what it costs, and the 20 closest network firewall software alternatives.

Who’s behind it
Not stated
Online since
Unknown
Trackers
Prices
No pricing page
Last price change
–
Closest alternative
Netgate

Measured from OPNsense’s own pages, the Internet Archive and public records. Hover a dotted value for its source and date.

We’ll send a link to confirm. Your address is only used for these alerts.

Visit OPNsense

01 · Who’s behind it

Who runs OPNsense

OPNsense opnsense.org

We’ve made digital security accessible to everyone. With our free OPNsense® platform, you get all the features of expensive commercial firewalls and more. Enjoy open and verifiable sources in a product developed with and for a large user community.

Wikidata: open-source firewall

Company
No imprint we could read
Online since
Not in the Internet Archive
Audience
In English

02 · Privacy

What OPNsense tracks

What the homepage loads before you accept or decline cookies. A cookie banner should hold most of it back until you agree, and a tag manager can load more that we don’t see.

tracker that follows visitors

4 of the 18 alternatives below have fewer, 9 have more.

Privacy-friendly alternatives →
Cookie banner
None found
US company
2 tools
  • Visitor analytics

    Counts and follows visits, usually with cookies.

  • Third-party embeds

    Videos, maps or fonts from other companies, which receive the visitor’s IP address.

03 · Alternatives

Alternatives to OPNsense

Thumbs up if it’s a real alternative to OPNsense, thumbs down if it isn’t.

Fewer trackers than OPNsenseNo ad trackersRegistered in the EUFree planOnly in English
  1. 01
    Netgate netgate.com Top 10K English 4 trackers

    Netgate | Firewall, VPN and Routing Solutions

    Netgate is an open-source driven secure networking company that provides appliance and software-based firewall, VPN and routing solutions including pfSense

    Compare Netgate with OPNsense →
  2. 02
    Sophos sophos.com Top 1K English 2 trackers

    Sophos: Cyber Resilience for the Agentic AI Era

    Sophos Fusion is the industry’s most complete cyber defense system. It sees everything, connects everything, and enables your defenses to respond as one.

    Compare Sophos with OPNsense →
  3. 03
    NetBird netbird.io Top 10K English 1 tracker

    NetBird - Open Source Zero Trust Networking

    WireGuard®-based overlay network and Zero Trust Network Access in one platform for reliable and secure connectivity

    Compare NetBird with OPNsense →
  4. 04
    WatchGuard watchguard.com Top 10K English 1 tracker

    WatchGuard | Comprehensive Cybersecurity Solutions

    Award-winning solutions that are easy to deploy and manage, making enterprise-grade security accessible to any organization regardless of size or expertise.

    Compare WatchGuard with OPNsense →
  5. 05
    Barracuda Networks barracuda.com Top 10K English 2 trackers

    Cybersecurity Solutions: Email, Apps, Network, Data | Barracuda Networks

    Barracuda Networks is the worldwide leader in Email Protection, Application Protection, Network Security, and Data Protection Solutions

    Compare Barracuda Networks with OPNsense →
  6. 06
    Nmap nmap.org English 1 tracker

    Nmap: the Network Mapper - Free Security Scanner

    Nmap Free Security Scanner, Port Scanner, & Network Exploration Tool. Download open source software for Linux, Windows, UNIX, FreeBSD, etc.

    Compare Nmap with OPNsense →
  7. 07
    Mysterium mysterium.network Top 10K English No trackers

    Open Web Protocol - Mysterium Network

    An open-source ecosystem of protocols, tools and infrastructure to liberate the web. Our node network empowers both builders and users to access free information.

    Compare Mysterium with OPNsense →
  8. 08
    PowerDNS Authoritative Server powerdns.com English 2 trackers

    Home

    Boost subscriber performance by up to 25% for less than 1% of your overall 5G network investment.

    Compare PowerDNS Authoritative Server with OPNsense →
  9. 09
    Cloudflare cloudflare.com Top 100 English 1 tracker

    Cloudflare: Build for the agent era

    Welcome to Cloudflare - Powering the next generation of applications

    Compare Cloudflare with OPNsense →
  10. 10
    Comodo Group comodo.com Top 10K English 3 trackers

    Advanced Website Protection for Unmatched Cyber Defense

    Safeguard your devices with Comodo's advanced endpoint protection and protect your websites from malware and cyber threats. Secure your site now!

    Compare Comodo Group with OPNsense →
  11. 11
    Laravel laravel.com Top 10K English 2 trackers

    Laravel - The clean stack for Artisans and agents

    Laravel is a framework for building modern web apps and AI agents. Expressive syntax, built-in tools, and everything you need to ship fast.

    Compare Laravel with OPNsense →
  12. 12
    Tailscale tailscale.com Top 1K English 1 tracker

    Tailscale | Secure Connectivity for AI, IoT & Multi-Cloud

    The connectivity platform for devs, IT, and security teams. Zero Trust identity-based access that deploys in minutes and scales to every resource. Start free.

    Compare Tailscale with OPNsense →
  13. 13
    SourceForge sourceforge.net Top 1K English 3 trackers

    Compare B2B Software, Download, & Develop Open Source & Business Software - SourceForge

    SourceForge is the complete software discovery platform. SourceForge is the largest B2B software review and comparison site in the world, and features the largest business software directory, as well as free & fast open source software downloads and development.

    Compare SourceForge with OPNsense →
  14. 14
    Mullvad mullvad.net English No trackers

    Mullvad VPN - Privacy is for the people

    Free the internet from mass surveillance and censorship. Fight for privacy with Mullvad VPN and Mullvad Browser.

    Compare Mullvad with OPNsense →
  15. 15
    Netmaker netmaker.io English 2 trackers

    Netmaker: Zero Trust Platform for Secure Networking

    Securely connect your devices, clouds, and sites with Netmaker's Zero Trust platform. Fast WireGuard tunnels combined with granular access controls for true ZTNA.

    Compare Netmaker with OPNsense →
  16. 16
    Enlightenment enlightenment.org Top 10K English No trackers

    Enlightenment Main

    window manager for Unix-like operating systems

    Compare Enlightenment with OPNsense →
  17. 17
    Cisco cisco.com Top 1K English 1 tracker

    AI Infrastructure, Secure Networking, and Software Solutions - Cisco

    Cisco is a worldwide technology leader powering an inclusive future for all. Learn more about our products, services, solutions, and innovations.

    Compare Cisco with OPNsense →
  18. 18
    Auvik auvik.com Top 10K English 2 trackers

    Auvik Networks: Best Network Management Software Solution

    Auvik is cloud-based network management software for today’s changing workforce. Gain true network visibility and control. Use Auvik free for 14 days.

    Compare Auvik with OPNsense →
  19. 19
    Sonar sonar.software English 4 trackers

    Sonar: Unified OSS/BSS Software for Broadband ISPs

    Sonar is the unified OSS/BSS platform for broadband ISPs. Billing, CRM, network monitoring, field service, and inventory in one system. Built for operators since 2015.

    Compare Sonar with OPNsense →
  20. 20
    ZeroTier zerotier.com English 2 trackers

    ZeroTier | Software-Defined and Post-Quantum Networking

    Next-generation connectivity and cybersecurity. ZeroTier One connects any device, anywhere. ZeroTier Quantum delivers post-quantum, CNSA 2.0-aligned networks.

    Compare ZeroTier with OPNsense →

Closest first, by how much each site’s offer resembles OPNsense’s. Trackers are counted the same way as above. Highlighted technologies are ones OPNsense uses too. Votes and comments come from visitors and don’t change the order.

04 · History

No changes yet. Each new crawl is compared with the last one, and what OPNsense adds, drops or rewrites shows up here.

05 · Details

How we measure

Alternatives are matched by what sites actually offer, from their homepages, Wikidata and a summary by Claude, in any language. Trackers and the rest of the stack come from the homepage’s code and DNS records.

The full technology stack, the competitor map and search numbers · 9 technologies
Neighbours
k = 20
Sites searched
9,196
Vector
384-d
Query
25 ms

Competitor map

Each alternative by how close its vector is to OPNsense’s (x) and how much traffic it gets, how much of the stack it shares, or where it sits in the embedding space itself (y). Hover for the numbers, click to jump to it in the list.

similarity × popularity

SourceForgeTailscaleLaravelComodo GroupCloudflareMysteriumNmapNetBirdSophosNetgate

Built with

CMS
JavaScript libraries
  • jQuery asset https://opnsense.org/wp-content/themes/template/assets/scripts/jquery.js
CSS & UI
  • Bootstrap asset https://cdn.jsdelivr.net/npm/bootstrap@5.3.3/dist/css/bootstrap.min.css
Fonts
Analytics
CDN
  • jsDelivr asset https://cdn.jsdelivr.net/npm/select2@4.1.0-rc.0/dist/js/select2.min.js
Web servers
Languages & backends
  • PHP implied by WordPress (page source: /wp-content/)
Email hosting
  • Microsoft 365 TXT v=spf1 include:spf.protection.outlook.com -all