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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
7.4
Fortinet FortiGate offers cost-efficient security, enhancing performance and network stability, while significantly reducing operational costs and incidents.
Sentiment score
2.5
User feedback praises OPNsense for its robust features, ease of use, cost savings, improved performance, and high reliability.
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.
We have experienced a positive return on investment by utilizing Fortinet's products.
There's definitely an ROI. Having a centralized way of managing and applying policies across the entire organization always helps.
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
7.0
Fortinet FortiGate support receives mixed reviews, praised for higher-level assistance but criticized for inconsistent technical support responsiveness.
Sentiment score
6.4
Users prefer OPNsense community forums for support, finding them accessible and effective, with official support being timely but less centralized.
Sentiment score
4.9
Untangle NG Firewall is praised for effective support, but challenged by limited resources and phone support availability issues.
He explained that it required a command line configuration, as it couldn't be done through the graphical user interface.
I would rate their support for FortiGate a nine out of ten.
They offer very accurate solutions.
I mainly rely on community support since the solution is open source.
I've found all the answers I've needed so far via the forums.
They could improve the support.
They're able to remotely manage the devices if necessary for support.
 

Scalability Issues

Sentiment score
7.3
Fortinet FortiGate is scalable for enterprises, but expansion may require budget planning and careful pre-planning for integration.
Sentiment score
6.5
OPNsense is scalable and adaptable, though not ideal for large enterprises; excels with diverse tasks and various deployment options.
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.
You can choose a cheaper model if you only have 20-30 users, but you will need to spend more money for a FortiGate solution that covers 5,000.
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
7.9
Fortinet FortiGate is reliable and stable, despite occasional issues under high traffic; model selection impacts performance.
Sentiment score
8.5
OPNsense is stable and reliable, though some users report VPN issues and challenges with updates or extensive voice traffic.
Sentiment score
8.2
Untangle NG Firewall is stable, with users noting reliability, high ratings, and improvements over time, despite rare hardware issues.
Improper handling of these can lead to a memory surge, a well-known bug that can cause the entire system to freeze.
It is less stable than Palo Alto Networks and Check Point firewalls because there are lots of bugs in the latest firmware.
We have not had any problems with the operating systems or maintenance of subscriptions.
There are no bugs or glitches.
Stability-wise, I rate the solution a ten out of ten.
It just doesn't respond, so I have to restart it over and over again to try to figure out what the problem is.
 

Room For Improvement

Fortinet FortiGate needs improved UI stability, integration, performance, VPN functionality, support, and simplified policy management due to high costs.
OPNsense requires improvements in integration, user interface, documentation, technical support, and compatibility, particularly for VPNs and monitoring tools.
Untangle NG Firewall requires enhancements in support, management, mobile functionality, hardware, security, pricing, and on-premises deployment.
If I have put 10 GBPS of throughput on a firewall and I enable all of these features available, such as IPS or UTM functionalities, the throughput comes down to 1 GBPS.
By providing an integrated solution, users would have access to all features and functionalities within a single window, eliminating the need to navigate through multiple windows.
Investing in a solution that can accommodate such growth would be more cost-effective than repeatedly purchasing new hardware.
For high availability, it's crucial to have a method in place where a designated component oversees the entire process.
The user experience when we create policies can be made easier.
Some of the features include classified traffic and better blocking of newly registered DNS domains.
The user interface, training, and general product innovation need improvement.
 

Setup Cost

Fortinet FortiGate is praised for its cost-effectiveness and flexible licensing, especially benefiting small to medium-sized businesses.
OPNsense is cost-effective due to its free software, with main costs from hardware and optional support.
Untangle NG Firewall pricing is seen as cost-effective but can become expensive with feature bundling and higher user counts.
Secure SD-WAN is free of charge.
The most expensive part is the renewal of the license subscription.
FortiGate is priced lower than Palo Alto.
It's a free solution.
I rate the price of OPNsense a five out of ten.
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.
 

Valuable Features

Fortinet FortiGate is a reliable, user-friendly security solution known for robust features, easy configuration, and competitive pricing.
OPNsense offers flexibility, strong security, user-friendly management, and open-source benefits with robust VPNs, integration, and frequent updates.
Untangle NG Firewall offers user-friendly, affordable security features ideal for small businesses, including VPN, web filtering, and cloud management.
The firewall, IPS, and VPN functions are the most valuable features.
FortiGate provides solid protection against viruses, malware, and other threats.
Within the same dashboard, you get to see the security profiles, the type of traffic that's passing through, the top applications that are being consumed, etc.
The most valuable features include the basic firewall functionality and the GeoIP location services.
It's light and easy to manage.
The most valuable features of OPNsense are the GUI and frequent updates.
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
7.2
Number of Reviews
330
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
26th
Average Rating
8.6
Reviews Sentiment
7.2
Number of Reviews
24
Ranking in other categories
Unified Threat Management (UTM) (8th)
 

Mindshare comparison

As of May 2025, in the Firewalls category, the mindshare of Fortinet FortiGate is 21.4%, up from 17.7% compared to the previous year. The mindshare of OPNsense is 11.5%, down from 17.6% compared to the previous year. The mindshare of Untangle NG Firewall is 1.2%, down from 1.3% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Firewalls
 

Featured Reviews

EhabAli - PeerSpot reviewer
Efficient, user-friendly, and affordable
In the past, NSS Labs was utilized to test files and verify the numbers and datasheets. It would be beneficial to have an organization or testing lab that can verify the numbers in our datasheets since changes are frequently made, which can be inconvenient for review. For instance, when comparing different competitors such as Forcepoint, Palo Alto, and Check Point, the throughput or numbers in the datasheet may be lower than the actual numbers. Conversely, Fortinet typically reports very high numbers, but they cannot be replicated in the real world. Therefore, it would be advantageous for them to partner with a neutral testing organization such as NSS Labs to validate these numbers, thus providing more credibility and comfort to everyone regarding the accuracy of the datasheets. For the migration, everyone has a firewall in use and I am selling Fortinet. Typically, I am replacing another firewall. Previously, there was a tool available to convert configurations from one firewall, such as Palo Alto, to Fortinet, but this tool is no longer free. If it could be made free again, it would be very beneficial. This tool shows a lot of promise and is very good. Making it free would help many companies deliver their products in a more efficient and integrated way. It would also be more valuable to include the tool with the firewall package or license instead of having to pay extra for it. Paying extra puts more pressure on small companies to deliver the firewall and complete the configuration, especially if they have hundreds or thousands of policies. It's very painful to move through these policies line by line. The stability has room for improvement. When it comes to Secure SD-WAN, everything is fine. They are going the right way. SD-WAN is very promising. They can provide the SD-WAN solution separately, but they will not take this approach because even the smallest firewall can support the features, so there is no need to have a separate service or appliance. They are following the right steps, and there is nothing to be improved. Feature-wise, I'm really satisfied with the new release, and the features they have added. For now, it's fine.
Eddy Ramirez - PeerSpot reviewer
Good interface and firewall capabilities and overall easy to use
The security has improved as we can isolate the network. We can do attrition prevention via a tool that comes with the solution. We can have a VPN solution in place for those that work from home, outside the network, in a secure manner. We also like that it offers good authentication. It offers radius-based authentication, which has been useful for the company. The main platform is under the Open VPN firewall. The solution has high availability. When we have different ISPs, we can actually load balance those links or actually put some priority or even classify the traffic that might go into one ISP or another.
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
Educational Organization
21%
Computer Software Company
14%
Comms Service Provider
7%
Manufacturing Company
6%
Computer Software Company
16%
Comms Service Provider
13%
Government
7%
Educational Organization
6%
Computer Software Company
13%
Comms Service Provider
11%
Government
7%
Educational Organization
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
 

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?
I consider the pricing of OPNsense to be high when compared with other market products. However, as a free firewall p...
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: April 2025.
849,686 professionals have used our research since 2012.