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Open Source pfSense Alternatives

The best open source alternative to pfSense is OPNsense. If that doesn't suit you, our users have ranked more than 25 alternatives to pfSense and 16 is open source so hopefully you can find a suitable replacement. Other interesting open source alternatives to pfSense are NethServer, IPFire, VyOS and Endian Firewall Community.

pfSense alternatives are mainly Firewalls but may also be VPN Services or Operating Systems. Filter by these if you want a narrower list of alternatives or looking for a specific functionality of pfSense.
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pfSense iconpfSense
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  • FreeOpen Source
  • BSD

pfSense is a free, open source customized distribution of FreeBSD tailored for use as a firewall, and...

Learn more about pfSense

  1. OPNsense icon

    OPNsense

    • FreeOpen Source
    • Self-Hosted

    OPNsense includes most of the features available in expensive commercial firewalls, and more in many cases. It brings the rich feature set of commercial offerings with the benefits of open and verifiable sources.

    Login
    OPNsense vs pfSense opinions
    Almost everyone thinks OPNsense is a great alternative to pfSense.
    Zazucki

    Read this: https://teklager.se/en/pfsense-vs-opnsense/ Especially the part under "Politics, drama & bad blood between the two projects"

    Positive comment ago
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    1

    Stability is the in the center of OPNsense distribution. To achieve this goal, only a limited number of plugins are available, but they are well tested and upgraded together with the core.

    Positive comment ago
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    1

    OPNSense has the lost features in pfSense.

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    -5
  2. NethServer icon

    NethServer

    • FreeOpen Source
    • Linux
    • Self-Hosted
    • CentOS

    NethServer is a CentOS-based Linux distribution for servers. The product's main feature is a modular design which makes it simple to turn the distribution into a mail server and filter, web server, groupware, firewall, web filter, IPS/IDS or VPN server.

    Screenshot
    NethServer vs pfSense opinions
    Some users think NethServer is a great alternative to pfSense, some don't.
    Aas

    Multi purpose server. Not just firewall.

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    3

    pfSense is a firewall and router, NethServer is a Linux server platform for running other types of services

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    0

    An orange is not like a piece of cheese

    Negative comment ago
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    0
    atomicwrites

    pfSense is a dedicated firewall but this is a general turnkey server.

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    0

    It's main function (server) does not match pfSense (firewall)

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    7


  3. IPFire icon

    IPFire

    • FreeOpen Source
    • Linux

    IPFire is a server distribution with intended to use as a firewall. It focuses on flexibility, and scales from small to middle sized business networks and home networks.

    Screenshot
    Almost everyone thinks IPFire is a great alternative to pfSense.
  4. VyOS is a community fork of Vyatta , a Linux-based network operating system that provides software-based network routing, firewall, and VPN functionality.

    Screenshot
    Almost everyone thinks VyOS is a great alternative to pfSense.
  5. Endian Firewall Community (EFW) is a "turn-key" linux security distribution that turns every system into a full featured security appliance with Unified Threat Management (UTM) functionality.

    Screenshot
    Almost everyone thinks Endian Firewall Community is a great alternative to pfSense.


  6. ClearOS icon

    ClearOS

    • FreeOpen Source
    • Linux

    ClearOS is a family of operating systems for the enterprise, small business, and home. There are three editions to choose from depending on your needs and suitable to your abilities. They are: ClearOS Enterprise, ClearOS Home, and ClearOS Core.

    Screenshot
    Some users think ClearOS is a great alternative to pfSense, some don't.
  7. ZeroShell icon

    ZeroShell

    • FreeOpen Source
    • Linux
    • Self-Hosted

    Zeroshell is a Linux distribution for servers and embedded devices aimed at providing the main network services a LAN requires. It is available in the form of Live CD or Compact Flash image and you can configure and administer it using your web browser.

    Discontinued

    From the Zeroshell website (translated from Italian to English)Disposal of the Zeroshell projectThe project has now reached the end of its life. Zeroshell was born in June 2006 and has over 200,000 installations worldwide. Any security updates will be guaranteed until September 30, 2021. I thank everyone who believed and contributed in various ways to improving the project. The zeroshell.org domain will be divested or sold on September 30, 2021

    Screenshot
    Almost everyone thinks ZeroShell is a great alternative to pfSense.
  8. IPCop icon

    IPCop

    • FreeOpen Source
    • Linux

    IPCop Firewall is a Linux firewall distribution geared towards home and SOHO (Small Office/Home Office) users. The IPCop interface is very user-friendly and task-based.

    Discontinued

    The project seems to be no longer updated. Last version, 2.1.9, released in February 2015, can be still downloaded from the official website.

    DHCP
    IPCop vs pfSense opinions
    Almost everyone thinks IPCop is a great alternative to pfSense.

    Low HW needs, easy to use.

    Positive comment ago
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    0
  9. Smoothwall icon

    Smoothwall

    • FreeOpen Source
    • Linux

    The SmoothWall Open Source Project was set up to develop and maintain SmoothWall Express - a Free firewall that includes its own security-hardened GNU/Linux operating system and an easy-to-use web interface.

    Discontinued

    The site says the last release was October 2014.

    Control Home
  10. OpenWISP icon

    OpenWISP

    • FreeOpen Source
    • Linux
    • Self-Hosted

    OpenWISP is a software platform that can be used to implement a complete public wifi service.

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Showing 10 of 16 alternatives