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

19 of the 60 sites closest to OPNsense match.

  1. 01
    SonicWall sonicwall.com Top 10K No trackers

    cybersecurity company

    Compare SonicWall with OPNsense →
  2. 02
    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 →
  3. 03
    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 →
  4. 04
    Psiphon psiphon.ca No trackers

    Psiphon

    Open source, and trusted by millions: a censorship-resistant VPN that works where others fail.

    Compare Psiphon with OPNsense →
  5. 05
    Enlightenment enlightenment.org Top 10K English No trackers

    Enlightenment Main

    window manager for Unix-like operating systems

    Compare Enlightenment with OPNsense →
  6. 06
    Clam AntiVirus clamav.net No trackers

    ClamAVNet

    antivirus software

    Compare Clam AntiVirus with OPNsense →
  7. 07
    Openwall openwall.com No trackers

    Openwall - bringing security into open computing environments

    Information Security software for open computing environments, related publications, and professional services

    Compare Openwall with OPNsense →
  8. 08
    Syncthing syncthing.net Top 10K English No trackers

    Syncthing

    open source continuous file synchronization software

    Compare Syncthing with OPNsense →
  9. 09
    MikroTik mikrotik.com Top 10K English No trackers

    MikroTik · Routers and Wireless

    MikroTik makes networking hardware and software, which is used in nearly all countries of the world. Our mission is to make existing Internet technologies faster, more powerful and affordable to wider range of users.

    Compare MikroTik with OPNsense →
  10. 10
    NextDNS nextdns.io Top 10K English No trackers

    NextDNS - The new firewall for the modern Internet

    NextDNS protects you from all kinds of security threats, blocks ads and trackers on websites and in apps and provides a safe and supervised Internet for kids — on all devices and on all networks.

    Compare NextDNS with OPNsense →
  11. 11
    MyBB mybb.com No trackers

    MyBB - Free and Open Source Forum Software

    The official homepage for MyBB, a free and open source PHP forum software.

    Compare MyBB with OPNsense →
  12. 12
    Cygwin cygwin.com Top 10K English No trackers

    Cygwin

    Unix subsystem for Windows machines

    Compare Cygwin with OPNsense →
  13. 13
    Firefox firefox.com Top 1K English No trackers

    Firefox: The fast, private browser that keeps you safe — Firefox.com

    The independent browser that has your back. Firefox blocks trackers, has a free built-in VPN, puts you in control of AI, and never sells your personal data.

    Compare Firefox with OPNsense →
  14. 14
    Appwrite appwrite.io English No trackers

    Appwrite · The open-source cloud for developers and agents

    Appwrite is an open-source developer platform with Auth, Databases, Storage, Functions, Messaging, and Sites. The open-source cloud for agents and developers.

    Compare Appwrite with OPNsense →
  15. 15
    erpnext.com English No trackers

    Open Source Cloud ERP Software | ERPNext

    ERPNext is the world's best 100% open source ERP software which supports manufacturing, distribution, retail, trading, services, education & more. Contact us!

    Compare erpnext.com with OPNsense →
  16. 16
    Manjaro manjaro.org No trackers

    Manjaro – The Linux for People and Organizations

    This page provides an overview of Manjaro Linux, an open source operating system designed for ease of use. Learn about its features, installation, and support options. Get the most out of Manjaro Linux with the latest news, downloads, and tips from our helpful community.

    Compare Manjaro with OPNsense →
  17. 17
    Mozilla mozilla.org Top 100 English No trackers

    Mozilla - Internet for people, not profit (US)

    We’re working to put control of the internet back in the hands of the people using it.

    Compare Mozilla with OPNsense →
  18. 18
    WinMerge winmerge.org English No trackers

    WinMerge - You will see the difference…

    WinMerge is an Open Source differencing and merging tool for Windows. WinMerge can compare both folders and files, presenting differences in a visual text format that is easy to understand and handle.

    Compare WinMerge with OPNsense →
  19. 19
    Penpot penpot.app English No trackers

    Penpot: The open-source design platform for teams.

    Penpot is the open-source design platform for teams building digital products at scale, enabling deeper collaboration across design, code, and AI workflows.

    Compare Penpot 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 = 60
Sites searched
9,216
Vector
384-d
Query
43 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

MyBBNextDNSMikroTikSyncthingOpenwallEnlightenmentPsiphonMullvadMysteriumSonicWall

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