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Netgate pfSense vs OPNsense comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Jul 28, 2024

Review summaries and opinions

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

ROI

Sentiment score
5.9
Netgate pfSense provides significant ROI with cost-effectiveness, eliminating license fees, ideal for small to mid-sized companies replacing costly systems.
Sentiment score
3.0
Numerous users reported substantial financial savings and improved network security with OPNsense compared to alternatives like FortiGate or Sophos.
Compared to what we were doing with Sophos, it provides a great value financially and in terms of time savings.
Director of IT at a religious institution with 51-200 employees
I have seen a return on investment with cost savings after implementing Netgate pfSense, as other firewalls would cost me lakhs of rupees while pfSense is free.
Information Technology Infrastructure Manager at a tech services company with 11-50 employees
We have been saving by having a stable, well-known product.
Managing Director at a consultancy with 1-10 employees
The network attacks reduced by approximately 60% after using that, even without customizing the custom configuration yet.
Senior IT Infrastructure Engineer at a real estate/law firm with 11-50 employees
For a very little investment, I was able to increase the security of my network.
Administrator at a retailer with 10,001+ employees
 

Customer Service

Sentiment score
7.8
Netgate pfSense receives praise for effective support, though some users experience slow responses; forums often suffice for troubleshooting.
Sentiment score
5.3
OPNsense users mostly find community forums and documentation sufficient, though some express dissatisfaction with official support availability and cost.
When we're down, that's $8000 an hour on a $1500 firewall.
Chief information security officer at Center for Information Management, Inc.
The support is prompt and effective, making it well worth the investment.
Owner at GroupGates, LLC
Even when they're in the middle of deploying a new version, I've reached out and received a download link within five minutes.
Senior Network Engineer at a comms service provider with 1,001-5,000 employees
Compared to some open-source projects with weak support, OPNsense stands out for having both a strong community and commercial backing options.
ISO 27001 Lead Implementer at a consultancy with 11-50 employees
I mainly rely on community support since the solution is open source.
Senior Client Solutions Architect at a tech services company with 1,001-5,000 employees
If you say you do not have one, it is finished. This is where the monopoly starts.
Senior Solutions Engineer at a educational organization with 201-500 employees
 

Scalability Issues

Sentiment score
6.6
Netgate pfSense is highly scalable for SMBs, supporting high user counts and complex configurations depending on hardware choices.
Sentiment score
6.8
OPNsense offers scalable and flexible network solutions, effectively supporting mid-sized to enterprise needs with appropriate hardware or virtualization.
The next step up now is to the 4100, which gives you an additional preconfigured WAN port that allows you to easily separate networks.
CIO and President at Aim High! Inc.
Netgate doesn't come anywhere close to the scalability that its competitors do.
Chief information security officer at Center for Information Management, Inc.
Due to the absence of a single pane of glass management feature, scaling out pfSense becomes quite challenging.
Technical Project Manager at a computer software company with 201-500 employees
I use Zenarmor, pinning it to one core for packet inspection, and the CPU performance seems very good.
Senior Client Solutions Architect at a tech services company with 1,001-5,000 employees
OPNsense's scalability is excellent; I just need to resize my hardware and upgrade the server, and voilà, I am good to go.
Senior IT Infrastructure Engineer at a real estate/law firm with 11-50 employees
In theory, OPNsense can handle small home networks and even large enterprise environments if deployed on sufficiently powerful hardware or virtualized on a clustered system.
ISO 27001 Lead Implementer at a consultancy with 11-50 employees
 

Stability Issues

Sentiment score
7.1
Netgate pfSense is highly stable, with users attributing minimal issues to hardware rather than the firewall, ensuring reliable performance.
Sentiment score
7.3
OPNsense is stable with occasional issues; praised for security and UI, performance varies with hardware and resource availability.
Netgate pfSense rates a 10 for stability, and I have experienced no issues there.
Workday Reporting & Analytics Lead at a tech vendor with 10,001+ employees
Otherwise, I've never seen one have a problem. It's just rock solid.
Chief information security officer at Center for Information Management, Inc.
It has been running for four years now without any issues.
Director Solutions Architecture and Business Development at Puma Cybersystems, Inc.
For home and small network use, OPNsense is also reliable, providing enterprise-grade security at no cost.
ISO 27001 Lead Implementer at a consultancy with 11-50 employees
The only challenge faced was its inadequacy to manage large voice traffic effectively, even with dedicated hardware.
Senior Network Engineer at a comms service provider with 11-50 employees
At the latest code level, I haven't experienced any crashes.
Senior Client Solutions Architect at a tech services company with 1,001-5,000 employees
 

Room For Improvement

Netgate pfSense requires better centralized management, an updated user interface, improved security integrations, and enhanced documentation for ease of use.
OPNsense users face VPN setup issues, inadequate documentation, performance shortfalls, high pricing, and request better usability and features.
I need to speak to someone immediately.
Owner at GroupGates, LLC
You could add AI for troubleshooting with Netgate pfSense because it will be easier for new engineers.
Network & Security Engineer at Arrow PC Network Pvt Ltd
I would like to have the ability to control all my devices from one place.
CIO and President at Aim High! Inc.
Enhancing its performance for significant amounts of data traffic would make it closer to a perfect solution.
Senior Network Engineer at a comms service provider with 11-50 employees
It would be beneficial if they could create some videos on how to set it up themselves.
Administrator at a retailer with 10,001+ employees
The documentation should be clearer because I faced some difficulties navigating many options.
ISO 27001 Lead Implementer at a consultancy with 11-50 employees
 

Setup Cost

Netgate pfSense is affordable, offering open-source and paid versions with robust features and competitive hardware pricing.
OPNsense is a cost-effective, open-source solution for enterprises, reducing expenses compared to FortiGate and Palo Alto alternatives.
The cost of the 3500 was closer to $4,000.
CIO and President at Aim High! Inc.
I don't always seek the cheapest or most expensive option but rather the best value for my investment.
IT Supervisor at a consumer goods company with 11-50 employees
The total cost of ownership is very low.
Technical Project Manager at a computer software company with 201-500 employees
I consider the pricing of OPNsense to be high when compared with other market products.
Senior Network Engineer at a comms service provider with 11-50 employees
OPNsense is free, the licensing and setup was easy.
Administrator at a retailer with 10,001+ employees
 

Valuable Features

Netgate pfSense offers reliable VPN and firewall features, user-friendly management, flexibility, cost-effectiveness, scalability, and strong community support.
OPNsense provides user-friendly configuration, robust security features, and adaptability, making it ideal for enterprise and IT network management.
pfSense's flexibility is great. If you don't have the money to buy the NetGate hardware, anything works with it. You can toss it on any low-end piece of hardware or virtualize it if you choose to virtualize it.
Senior Network Administrator at Elite Computers
We have multiple VLANs, and with assistance, it was easy to get everything set up and running in our organization the way we needed it to.
Director of IT at a religious institution with 51-200 employees
We had downtime before pfSense. We've never gone down using the solution.
Head of IT at a tech services company with 11-50 employees
The most valuable features include the basic firewall functionality and the GeoIP location services.
Senior Network Engineer at a comms service provider with 11-50 employees
I can have a Wi-Fi VLAN and feel secure that the server network or the VM network that I have on a different VLAN are isolated, and they cannot talk to one another, which adds a great level of security.
Administrator at a retailer with 10,001+ employees
It offers enterprise-grade features such as intrusion detection and prevention system, VPN support, traffic shaping, and web filtering, all without license cost.
ISO 27001 Lead Implementer at a consultancy with 11-50 employees
 

Categories and Ranking

Netgate pfSense
Ranking in Firewalls
2nd
Average Rating
8.6
Reviews Sentiment
7.2
Number of Reviews
221
Ranking in other categories
No ranking in other categories
OPNsense
Ranking in Firewalls
7th
Average Rating
8.2
Reviews Sentiment
6.6
Number of Reviews
47
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of August 2026, in the Firewalls category, the mindshare of Netgate pfSense is 7.4%, down from 11.4% compared to the previous year. The mindshare of OPNsense is 7.9%, down from 11.0% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Firewalls Mindshare Distribution
ProductMindshare (%)
Netgate pfSense7.4%
OPNsense7.9%
Other84.7%
Firewalls
 

Q&A Highlights

DC
Works at Saffrony Institute of Technology
Apr 03, 2023
 

Featured Reviews

JA
Principal Cloud Architect - Software Engineer at a consultancy with 11-50 employees
Rapid VPN setup has connected offices in minutes and brings live insights for proactive issue control
What I appreciate the most about Netgate pfSense is the ease and straightforward nature of the platform. I can set up a new office in less than 10 minutes. The benefits of using Netgate pfSense are that I can set up VPNs in less than two to three minutes, and then just deploy the file across my networks, where everybody would be connected in less than an hour. The dashboards of Netgate pfSense bring all the necessary information that I need at a glance, and it is actually a live update every three to five seconds. It is spotless, and I have been able to catch issues before they hit operations.
Moutaz Sheikh Alard - PeerSpot reviewer
ISO 27001 Lead Implementer at a consultancy with 11-50 employees
Has helped simulate enterprise security setups and strengthens network segmentation practices
For my capstone, I use OPNsense for my project and its broader benefits for enterprise and cybersecurity context. OPNsense is an open source based firewall and routing platform. It offers enterprise-grade features such as intrusion detection and prevention system, VPN support, traffic shaping, and web filtering, all without license cost. This platform has a modular design, a clean web-based GUI, and frequent updates that prioritize security and usability. It competes with commercial firewalls such as Cisco ASA, FortiGate, and Palo Alto, but stands out because it's community-driven, cost-effective, and transparent. I find OPNsense's feature of acting as a central firewall and gateway most valuable, providing robust point segmentation between the internal network and DMZs in my capstone project, intrusion detection to monitor malicious traffic, VPN services for secure remote access, and logging and monitoring for compliance and auditing. This allows me to simulate a real-world enterprise environment on a smaller scale, demonstrating both security hardening and network efficiency. OPNsense impacts my projects and home network positively because its cost-effectiveness is perfect for lab and enterprise setup without expensive licensing. The flexibility, easy VLAN and DMZ configuration supports different zones such as web servers, mail servers, and log servers. The security-first design for IDS/IPS integration helps me showcase modern defense-in-depth strategies. The user-friendly management through the web GUI makes it possible to manage complex firewall rules clearly, which is critical when documenting and presenting a capstone. Scalability is also an advantage. Although my project is lab-based, OPNsense can scale into production deployments in SMBs and enterprise.
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Top Industries

By visitors reading reviews
Comms Service Provider
12%
Computer Software Company
10%
Manufacturing Company
7%
Financial Services Firm
6%
Comms Service Provider
18%
Computer Software Company
9%
Manufacturing Company
8%
Outsourcing Company
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business171
Midsize Enterprise33
Large Enterprise29
By reviewers
Company SizeCount
Small Business32
Midsize Enterprise6
Large Enterprise8
 

Questions from the Community

Help me find the best open source router
You don't really specify what type of router you are looking for but if you are talking about a gateway router I recommend PFSense. This software solutions can be installed on youf own hardware or ...
How do I choose between Fortinet FortiGate and pfSense?
Fortinet’s Fortigate is a firewall solution we use and are very much satisfied with its performance. We find Fortigate both cost-effective and efficient. One of the features we like most is that Fo...
What is the difference between PfSense and OPNsense?
Two of the most common and well recognized firewalls, PfSense and OPNsense both support site-to-site IPsec VPN and client, Open VPN and client, and PPTP client. Both also have intrusion detection a...
What is your experience regarding pricing and costs for OPNsense?
Setup cost is almost zero as one can simulate the whole environment using open source version. Pricing seems fair enough. Open source license allows a beginner to have a complete firewall solution ...
What needs improvement with OPNsense?
When I talk about VPN, I am not completely satisfied with the VPN functions of OPNsense. What I have received so far is that sometimes the VPN route caches for some time and sometimes I want to cha...
What is your primary use case for OPNsense?
I mainly use OPNsense for edge user firewall applications.
 

Comparisons

 

Overview

 

Sample Customers

Nerds On Site Inc., RKC Development Inc., Expertech, Fisher's Technology, Ncisive, Consulting, CPURX, Vaughn's Computer House Calls, Imeretech LLC, Digital Crisis, Carolina Digital Phone, Technigogo Technology Services, The Simple Solution, SwiftecITInc, Rocky Mountain Tech Team, Free Range Geeks, Alaska Computer Geeks, Lark Information Technology, Renaissance Systems Inc., Cutting Edge Computers, Caretech LLC, GoVanguard, Network Touch Ltd, P.C. Solutions.Net, Vision Voice and Data Systems LLC, Montgomery Technologies, Techforce, Concero Networks, ASONInc, CPS Electronics and Consulting, Darkwire.net LLC, IT Specialists, MBS-Net Inc., VOICE1 LLC, Advantage Networking Inc., Powerhouse Systems, Doxa Multimedia Inc., Pro Computer Service, Virtual IT Services, A&J Computers Inc., Envision IT LLC, CommunicaONE Inc., Bone Computer Inc., Amax Engineering Corporation, QPG Ltd. Co., IT 101 Inc., Perfect Cloud Solutions, Applied Technology Group Inc., The Digital Sun Group LLC, Firespring
1. Deciso B.V. 2. iXsystems, Inc.  3. EuroBSDCon  4. Netgate  5. Claranet  6. Voleatech  7. Open Systems AG  8. Securebit AG  9. Proxmox Server Solutions GmbH  10. AVM Computersysteme Vertriebs GmbH  Additional customers include: T-Systems International GmbH, Deutsche Telekom AG, Vodafone GmbH, 1&1 IONOS SE, OVHcloud, Hetzner Online GmbH, Strato AG, PlusServer GmbH, Host Europe GmbH, United Internet AG, 1&1 Versatel Deutschland GmbH, QSC AG, Bechtle AG, Cancom SE, Computacenter AG & Co. oHG, T-Systems Multimedia Solutions GmbH, Atos SE, Capgemini SE, Accenture plc, IBM Corporation, Hewlett Packard Enterprise Company, Cisco Systems, Inc.
Find out what your peers are saying about Netgate pfSense vs. OPNsense and other solutions. Updated: August 2026.
908,834 professionals have used our research since 2012.