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OPNsense vs Smoothwall Firewall comparison

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Comparison Buyer's Guide

Executive Summary

Review summaries and opinions

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

Categories and Ranking

Fortinet FortiGate
Sponsored
Ranking in Firewalls
1st
Average Rating
8.4
Reviews Sentiment
6.9
Number of Reviews
574
Ranking in other categories
Secure Web Gateways (SWG) (2nd), Intrusion Detection and Prevention Software (IDPS) (1st), Software Defined WAN (SD-WAN) Solutions (1st), WAN Edge (1st), ZTNA (2nd), Unified Threat Management (UTM) (1st)
OPNsense
Ranking in Firewalls
3rd
Average Rating
8.2
Reviews Sentiment
6.6
Number of Reviews
44
Ranking in other categories
No ranking in other categories
Smoothwall Firewall
Ranking in Firewalls
42nd
Average Rating
9.0
Reviews Sentiment
8.3
Number of Reviews
1
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of November 2025, in the Firewalls category, the mindshare of Fortinet FortiGate is 19.9%, up from 19.8% compared to the previous year. The mindshare of OPNsense is 11.3%, down from 14.1% compared to the previous year. The mindshare of Smoothwall Firewall is 0.3%, up from 0.1% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Firewalls Market Share Distribution
ProductMarket Share (%)
Fortinet FortiGate19.9%
OPNsense11.3%
Smoothwall Firewall0.3%
Other68.5%
Firewalls
 

Featured Reviews

Vasu Gala - PeerSpot reviewer
A stable solution with an intuitive interface and quick customer service
I have been working with Fortinet FortiGate, WatchGuard, Sophos, and SonicWall. I'm not as comfortable with SonicWall because of their UI and limitations. I prefer Fortinet above all other options. When it comes to configuration, I am confident in my ability to handle various tasks, including creating policies such as firewall rules, web policies, and application policies. Additionally, I can configure VPNs and implement load balancing, among other tasks. Overall, I feel much more comfortable working with Fortinet. Fortinet has made significant improvements by integrating AI with firewalls for threat analysis and prevention. In the past 2-3 years, they have launched FortiSASE and SIEM, and they also provide SOC services. Both Palo Alto and Fortinet FortiGate are excellent. While Fortinet FortiGate comes at higher prices, the functionality and support justify the cost. They promptly resolve firmware issues and inform all support providers about configuration changes.
Moutaz Sheikh Alard - PeerSpot reviewer
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.
Himanshu-Sharma - PeerSpot reviewer
Offers good scalability and monitoring features
There is room for improvement in the UI. They can improve it by making it so that everything is in one place, so we don't have to jump around to different pages. For example, if we're creating a rule, we should be able to do everything on the same page. Just a drop-down thing or something. This would improve productivity.

Quotes from Members

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

Pros

"Their interface is very easy to use, it is without bugs."
"The most valuable features are security and vision, and all of the UTM functionality."
"Having IPS helps in ensuring that our network is protected from potential threats, which is crucial as we implement our payment gateway."
"It's a good product that significantly enhances security and protects organizational data."
"The biggest lesson would be that Fortinet FortiGate provides a high level of security at a good total cost of ownership."
"Its performance in fulfilling our requirements has been satisfactory."
"The most valuable features of the FortiGate firewall include SSL inspection, VPN functionality, and threat intelligence features for preventing threats."
"The solution has very good threat and content filtering switches."
"OPNsense could improve by making the configuration more web-based rather than shell or command-line-based."
"The solution has high availability."
"We can open a new VPN connection easily. It's much easier than with Fortinet in our experience."
"The most valuable feature is the Dual WAN in OPNSense, which offers advanced capabilities."
"YouTube provides video explanations, and that brings you to speed, instead of sitting down and reading a 200-page document on the product."
"OPNsense impacts my projects and home network positively because its cost-effectiveness is perfect for lab and enterprise setup without expensive licensing, and the flexibility, easy VLAN and DMZ configuration supports different zones such as web servers, mail servers, and log servers."
"The most valuable features in OPNsense are reporting and visibility."
"The IDS and IPS features are valuable. From the usability perspective, there is a lot of good documentation. As IT professionals, we found it very easy to configure the firewall. It was easy to configure and use."
"It was easy to initially deploy it."
 

Cons

"The user interface of the Fortinet FortiGate management console could be more intuitive and user-friendly, and the log analysis and reporting features could be enhanced to provide more flexibility and customizable insights."
"The monitor and the visibility, in this proxy, is very weak."
"The licensing could be improved as it is a little confusing and too granular for Fortinet FortiGate."
"There can be more security in hybrid implementations. When a customer has a hybrid environment where some parts are in the cloud, we need a consistent security solution for such scenarios."
"The issue lies with features available in GUI versus CLI during configuration. When using GUI, I want to accomplish everything there, but sometimes it requires using CLI to ensure proper configuration."
"Bandwidth usage in reporting could be improved for Fortinet FortiGate."
"They could improve the response time and quality of support."
"The renewal cost is much higher than other firewalls. It is not reasonable."
"There are issues with stability and reliability."
"I would like to see better SD-WAN performance."
"An area for improvement in OPNsense is the hardware, which needs to be updated more frequently. DNS blocking is another good feature I want to be added to the solution. pfSense has a peer-blocking feature that I also want to see in OPNsense."
"The solution could be more secure."
"We did not like the fact that you have to configure everything with the graphic user interface. We have used other firewalls, such as FortiGate, that you can configure via code. OPNsense is not easy to integrate. When you are deploying via GitHub or another source repository, this is not possible. That's one thing we didn't like much."
"You will need additional training before you can actually start to use it."
"SD-WAN (software-defined wide area network) is integrated into some restricted service providers for OPNSense."
"They should improve IPEs for security in the future."
"There is room for improvement in the UI. They can improve it by making it so that everything is in one place, so we don't have to jump around to different pages."
 

Pricing and Cost Advice

"Fortinet Secure SD-WAN delivered the lowest total cost of ownership (TCO) per Mbps among all other vendors."
"These boxes are not that expensive compared to what they can do, their functionality, and the reporting you receive. Fortinet licensing is straightforward and less confusing compared to Cisco."
"We just pay a flat monthly fee to the vendor for the support."
"This is not a cheap solution but it isn't expensive, either. It's a good solution for the right price."
"Cost-wise, there is not much difference from Sophos, but feature-wise, we get more features."
"The licensing scheme of Fortinet is better than Cisco. It is more logical."
"The license for Fortinet FortiGate is affordable in my country."
"It's one of the more expensive brands. The 100 series costs around $4,000. They are similar in pricing to what you might get from Cisco solutions and probably other similar ones. They're not more expensive than other similar solutions, but they're certainly not cheaper either."
"As an appliance, it's in the medium price range."
"The solution is not expensive."
"I've used the free version. My computer with two network cards at home allows me to try as many different software options as I want. I did pay for the license, but it was for the Zenarmor license, which is the packet inspection tool. They use AI for packet inspection, which integrates with OPNsense and pfSense."
"We are using the paid version."
"It is a free solution, and when you compare it to alternatives like FortiGate, which is quite powerful but also costly, the value becomes evident."
"It is not an expensive product. Basically, I deployed it because it was the fastest solution to satisfy our needs in open source."
"Its pricing is unbeatable in comparison to other firewalls. You can have a small instance that could be €80 a month with the hardware underneath. Azure Firewall and FortiGate are out of the question at this price. If you are on a public cloud, you need the underlying infrastructure. Other than that, there is no additional cost. If you have it on-prem, you have to buy the server or the appliance. The hardware cost is replaced with the infrastructure cost in the cloud. You also have costs for the public IPs and underlying VMs, but that's not related to OPNsense. It would be the same for a FortiGate deployment on Azure. You need a FortiGate license, and you need the underlying infrastructure that scales up depending on your needs."
"It is free."
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Top Industries

By visitors reading reviews
Computer Software Company
14%
Comms Service Provider
9%
Manufacturing Company
8%
Financial Services Firm
6%
Comms Service Provider
16%
Computer Software Company
16%
University
6%
Manufacturing Company
6%
Computer Software Company
19%
Comms Service Provider
11%
University
10%
Educational Organization
10%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business350
Midsize Enterprise130
Large Enterprise187
By reviewers
Company SizeCount
Small Business30
Midsize Enterprise5
Large Enterprise8
No data available
 

Questions from the Community

Which is the better NGFW: Fortinet Fortigate or Cisco Firepower?
When you compare these firewalls you can identify them with different features, advantages, practices and usage a...
What is the biggest difference between Sophos XG and FortiGate?
From my experience regarding both the Sophos and FortiGate firewalls, I personally would rather use FortiGate. I know...
What are the biggest technical differences between Sophos UTM and Fortinet FortiGate?
As a solution, Sophos UTM offers a lot of functionality, it scales well, and the stability and performance are quite ...
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 cl...
What do you like most about OPNsense?
What I like the most about OPNsense is that it offers an easy-to-use dashboard for device management and control.
What is your experience regarding pricing and costs for OPNsense?
My experience with pricing, setup cost, and licensing is that since OPNsense is free, the licensing and setup was eas...
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Overview

 

Sample Customers

Amazon Web Services, Microsoft, IBM, Cisco, Dell, HP, Oracle, Verizon, AT&T, T-Mobile, Sprint, Vodafone, Orange, BT Group, Telstra, Deutsche Telekom, Comcast, Time Warner Cable, CenturyLink, NTT Communications, Tata Communications, SoftBank, China Mobile, Singtel, Telus, Rogers Communications, Bell Canada, Telkom Indonesia, Telkom South Africa, Telmex, Telia Company, Telkom Kenya
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.
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Find out what your peers are saying about Fortinet, Netgate, OPNsense and others in Firewalls. Updated: September 2025.
872,837 professionals have used our research since 2012.