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OPNsense vs Untangle NG Firewall comparison

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Comparison Buyer's Guide

Executive SummaryUpdated on Sep 16, 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
7.1
Fortinet FortiGate provides cost-effective security, reducing operational costs and enhancing efficiency with quick ROI for enterprises.
Sentiment score
2.5
Entities benefited from rapid returns and cost savings with OPNsense, offering superior threat management compared to Check Point and FortiNet.
Sentiment score
8.5
Untangle NG Firewall offers top-tier reporting, seamless integration, and scalability, enhancing security, client services, and ROI for businesses.
Clients are now comfortable and not wasting productive hours on IT support.
The automation part is giving us a cost benefit and speed; we can react faster.
It's a very useful tool to mitigate and protect your enterprise.
My ability to monetize it as a gateway security appliance to offer enhanced service offerings allows me to increase our price point.
 

Customer Service

Sentiment score
6.9
Fortinet FortiGate support varies, praised for responsiveness but criticized for slow responses and regional inconsistencies in efficiency.
Sentiment score
6.4
Many users rely on forums for support, expressing mixed satisfaction with OPNsense's accessibility, cost, and technical support.
Sentiment score
4.9
Untangle NG Firewall is praised for effective support, but challenged by limited resources and phone support availability issues.
They offer very accurate solutions.
The quick resolution of issues with Fortinet FortiGate is due to the support of the company and the fact that the equipment is easy to work with.
I would rate the technical support for Fortinet FortiGate a ten out of ten.
I mainly rely on community support since the solution is open source.
They're able to remotely manage the devices if necessary for support.
 

Scalability Issues

Sentiment score
7.3
Fortinet FortiGate is scalable with ease of expansion, though hardware integration and sizing can pose challenges for users.
Sentiment score
6.5
OPNsense is scalable for diverse organizations, efficiently supporting different user volumes, with some challenges in high-volume voice traffic.
Sentiment score
6.9
Untangle NG Firewall offers high scalability, efficiently supporting diverse user bases from small offices to large corporations.
They scale up really well from smaller models like the FortiGate 40 and 50 to bigger sites with the FortiGate 100 for more throughput - up to enterprise datacenters.
The variation comes in terms of the interfaces and throughputs, but from a security perspective, you get the same benefit, irrespective of whether you have an entry-level unit or an enterprise.
We determine sizing based on multiple factors: number of users, available links, traffic types, server count, services in use, and whether services will be published.
In my organization, there are 400 users, and OPNsense serves as our gateway and proxy for all of them.
Aside from these aspects, it demonstrated good scalability.
It supports routing, VPN setups, and traffic monitoring with additional packages like Snort and Suricata.
Since it can be put on any box, the scalability is fantastic.
 

Stability Issues

Sentiment score
7.8
Fortinet FortiGate is favored for its stability and reliability, with some performance issues resolved through updates and sizing.
Sentiment score
8.5
OPNsense is stable with high ratings, despite issues with VPN failover, occasional bugs, and hardware compatibility concerns.
Sentiment score
8.2
Untangle NG Firewall is stable, with users noting reliability, high ratings, and improvements over time, despite rare hardware issues.
We're experiencing 99.999% availability consistently.
I would rate the stability of Fortinet FortiGate a ten out of ten.
The solution is very stable.
It just doesn't respond, so I have to restart it over and over again to try to figure out what the problem is.
OPNsense is the same, but it does have a way of installing the Realtek drivers, which gives you a lot more stability overall on the system.
The only challenge faced was its inadequacy to manage large voice traffic effectively, even with dedicated hardware.
 

Room For Improvement

Fortinet FortiGate users seek improvements in stability, integration, scalability, cost, and advanced features like monitoring and zero-trust technology.
OPNsense faces challenges with integration, user interface, documentation, scalability, performance, and security features, needing enhancements in various areas.
Untangle NG Firewall requires enhancements in support, management, mobile functionality, hardware, security, pricing, and on-premises deployment.
Investing in a solution that can accommodate such growth would be more cost-effective than repeatedly purchasing new hardware.
The constant daily revisions necessitate meticulous identification of the relevant documents to prevent the use of outdated information that could jeopardize our environment.
While Fortinet claims to offer a comprehensive network solution, it falls short in addressing computer application issues, particularly server security.
For high availability, it's crucial to have a method in place where a designated component oversees the entire process.
Some of the features include classified traffic and better blocking of newly registered DNS domains.
There are some add-ons that need enhancements to make management easier for users, especially the reporting features.
The user interface, training, and general product innovation need improvement.
 

Setup Cost

Fortinet FortiGate offers various licensing models, balancing affordability and performance, though renewals can increase costs.
OPNsense is a cost-effective, flexible solution for enterprises, preferred over costly alternatives like FortiGate and Palo Alto.
Untangle NG Firewall pricing is seen as cost-effective but can become expensive with feature bundling and higher user counts.
FortiGate is priced lower than Palo Alto.
Last year, I renewed the support for three years, which can sometimes be expensive but depends on the security benefits and how it helps us.
It is about 20% cheaper.
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.
I would rate the pricing a nine out of ten, especially considering the availability of a free community edition.
It is free.
 

Valuable Features

Fortinet FortiGate provides robust security features, user-friendly management, and scalability, making it a preferred choice for organizations.
OPNsense is valued for its flexibility, user-friendly interface, robust features, frequent updates, and compatibility with useful plugins.
Untangle NG Firewall offers user-friendly, affordable security features ideal for small businesses, including VPN, web filtering, and cloud management.
In terms of security, we have not experienced any security flaws or loopholes, and it has proven to be quite stable.
FortiGate has helped reduce the risk of cyberattacks that might disrupt our client's production.
These features help reduce our downtime, manage the ISPs, and deploy SLAs for all the website traffic.
The most valuable features include the basic firewall functionality and the GeoIP location services.
One of the most valuable features is the network checking.
OPNsense is easy to use and open source.
The all-in-one gateway security functions and the ability to install it on generic equipment stand out.
 

Categories and Ranking

Fortinet FortiGate
Sponsored
Ranking in Firewalls
2nd
Average Rating
8.4
Reviews Sentiment
7.1
Number of Reviews
373
Ranking in other categories
Software Defined WAN (SD-WAN) Solutions (1st), WAN Edge (1st)
OPNsense
Ranking in Firewalls
3rd
Average Rating
8.4
Reviews Sentiment
6.7
Number of Reviews
40
Ranking in other categories
No ranking in other categories
Untangle NG Firewall
Ranking in Firewalls
24th
Average Rating
8.6
Reviews Sentiment
7.2
Number of Reviews
24
Ranking in other categories
Unified Threat Management (UTM) (7th)
 

Mindshare comparison

As of July 2025, in the Firewalls category, the mindshare of Fortinet FortiGate is 21.2%, up from 17.7% compared to the previous year. The mindshare of OPNsense is 11.4%, down from 17.7% compared to the previous year. The mindshare of Untangle NG Firewall is 1.1%, down from 1.2% compared to the previous year. It is calculated based on PeerSpot user engagement data.
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.
Akram Zaki Hussein - PeerSpot reviewer
Robust network security and management offering a user-friendly interface, open-source flexibility, and cost-effectiveness, with challenges regarding initial setup and the absence of official support
The interface is user-friendly, but there's room for improvement in terms of intuitiveness. The bundle management aspect requires additional attention to make it more intuitive, especially for inspecting high-level traffic. This is crucial, especially for larger companies where the existing features might not be the most optimal choice, given limitations like printer constraints. For high availability, it's crucial to have a method in place where a designated component oversees the entire process. Given that OPNsense plays a pivotal role as a firewall, safeguarding against various threats, having a reliable backup ensures uninterrupted protection even if unforeseen events impact the primary virtual machine. It would be beneficial if OPNsense supported additional virtualization platforms like Hyper-V from Microsoft and VMware, similar to how Kaspersky has integrated them.
MatthewSmith3 - PeerSpot reviewer
Thorough with all-in-one security functions and good affordability
The all-in-one gateway security functions and the ability to install it on generic equipment stand out. The centralized management console is great. I can template my installations and configurations. My ability to monetize it as a gateway security appliance to offer enhanced service offerings allows me to increase our price point. I provide it as a managed device to many of our clients. I take on the initial costs and charge them a monthly fee. They have threat detection.
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Top Industries

By visitors reading reviews
Computer Software Company
15%
Educational Organization
11%
Comms Service Provider
8%
Manufacturing Company
7%
Computer Software Company
16%
Comms Service Provider
14%
Government
6%
Educational Organization
6%
Computer Software Company
13%
Comms Service Provider
12%
Government
6%
Manufacturing Company
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
 

Questions from the Community

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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?
The pricing is competitive when compared to vendors like Palo and FortiNet.
What do you like most about Untangle NG Firewall?
The product helps small and medium enterprises secure their networks from intrusions. It also has features like DNS b...
What needs improvement with Untangle NG Firewall?
The user interface, training, and general product innovation need improvement. Enhancements could also be made to the...
 

Also Known As

FortiGate 60b, FortiGate 60c, FortiGate 80c, FortiGate 50b, FortiGate 200b, FortiGate 110c, FortiGate, Fortinet Firewall
No data available
No data available
 

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.
North American Stamping Group, Cerebral Palsy of North Jersey (CPNJ), Brown County Schools, IN, City of Bridgeton, MO, Lancaster County, SC, Vision Charter School, Clay County Sheriff’s Department, NC, Breakwater School, Boys & Girls Club of Manchester, NH, Admiral Farragut Academy, Flow Companies, No Ordinary Hotel, KECdesign,
Find out what your peers are saying about OPNsense vs. Untangle NG Firewall and other solutions. Updated: June 2025.
860,632 professionals have used our research since 2012.