pfSense is a free and open source firewall and router that also features unified threat management, load balancing, multi WAN, and more.
United States
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Comments about pfSense as an Alternative to OPNsense
- pfSense is Freemium and Open Source
OPNsense AlternativesOnly apps categorised as Firewalls
The best Firewall alternative to OPNsense is pfSense, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 10 alternatives to OPNsense and 15 are Firewalls so hopefully you can find a suitable replacement. Other interesting Firewall alternatives to OPNsense are IPFire, MikroTik RouterOS, VyOS and DynFi Firewall.
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OPNsense alternatives are mainly Firewalls, but if you're looking for VPN Services or Operating Systems you can filter on that. These are just examples - use the filter bar below to find more specific alternatives to OPNsense.
Alternatives list
30 pfSense alternatives
14 IPFire alternativesIPFire 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.
27 MikroTik RouterOS alternativesLinux-based system converts standard PCs into customizable routers, featuring advanced firewall, VPN server and client, bandwidth control, QoS, wireless AP, captive portal, remote management, industry protocol support, automation, and scalable licensing for network needs.
Cost / License
- Paid
- Proprietary
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- Online
- Self-Hosted
23 VyOS alternativesVyOS is a community fork of Vyatta , a Linux-based network operating system that provides software-based network routing, firewall, and VPN functionality.
DynFi® Firewall is the first French Open Source firewall. The system integrates many filtering features and allows for the first time to manage a large number of your appliances. Available for free, DynFi Firewall has two images (with VGA or Serial return) compatible with...
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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. The software has been designed with "usability in mind" and is very...
10 ZeroShell alternativesZeroshell 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.
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.
Microsoft Forefront Threat Management Gateway (Forefront TMG), formerly known as Microsoft Internet Security and Acceleration Server (ISA Server), is a network security and protection solution for Microsoft Windows, described by Microsoft as "enables businesses by allowing...
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. IPCop offers the critical functionality of an expensive network appliance using stock, or even obsolete...
Zorp GPL is a next generation, open source proxy firewall with deep protocol analysis. It allows you to inspect, control, and modify traffic on the application layer of the ISO/OSI model. Decisions can be made based on data extracted from the application-level traffic (for...
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Read this: https://teklager.se/en/pfsense-vs-opnsense/ Especially the part under "Politics, drama & bad blood between the two projects"