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Fortinet FortiGate-VM vs OPNsense 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
8.2
Fortinet FortiGate-VM enhances security and network stability, improving ROI with competitive pricing and proper long-term configuration.
Sentiment score
2.5
User feedback praises OPNsense for its robust features, ease of use, cost savings, improved performance, and high reliability.
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.
I observed a fifty to sixty percent reduction in operational costs after migrating to FortiGate VM.
They have a platform that organizes their networks and access effectively.
 

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
6.7
Fortinet FortiGate-VM support has mixed reviews, praised for responsiveness but criticized for occasional delays and inexperienced staff.
Sentiment score
6.4
Users prefer OPNsense community forums for support, finding them accessible and effective, with official support being timely but less centralized.
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.
Their support is helpful and effective.
The end-user support is delayed at levels L2 and L3.
Customer service and support are very good.
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.
 

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
8.9
FortiGate-VM generally offers scalability, though effectiveness varies by deployment and budget, with mixed user experiences on performance.
Sentiment score
6.5
OPNsense is scalable and adaptable, though not ideal for large enterprises; excels with diverse tasks and various deployment options.
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.
It can start with a single core and scale up to a 32-core license for a robust deployment.
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.
 

Stability Issues

Sentiment score
7.9
Fortinet FortiGate is reliable and stable, despite occasional issues under high traffic; model selection impacts performance.
Sentiment score
7.7
Fortinet FortiGate-VM is mostly stable, with improved reliability in newer versions, though some users report occasional issues.
Sentiment score
8.5
OPNsense is stable and reliable, though some users report VPN issues and challenges with updates or extensive voice traffic.
Improper handling of these can lead to a memory surge, a well-known bug that can cause the entire system to freeze.
We have not had any problems with the operating systems or maintenance of subscriptions.
The solution is very stable.
Recently they have had more, requiring internal testing to ensure deployment stability.
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.
FortiGate-VM users seek UI enhancements, better integration, reporting, support, pricing, scalability, stability, security, and simplified deployment.
OPNsense requires improvements in integration, user interface, documentation, technical support, and compatibility, particularly for VPNs and monitoring tools.
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.
The API needs better integration to match accounts and objects more effectively.
Now, these features require separate products like FortiManager, FortiAnalyzer, and a FortiCloud subscription for reporting.
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.
 

Setup Cost

Fortinet FortiGate is praised for its cost-effectiveness and flexible licensing, especially benefiting small to medium-sized businesses.
Enterprise buyers find Fortinet FortiGate-VM competitively priced with valuable features, despite complex pricing compared to open source and mid-tier products.
OPNsense is cost-effective due to its free software, with main costs from hardware and optional support.
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.
They could be slightly cheaper, however, Fortinet offers a good cost-benefit ratio.
FortiGate VM is considered a premium product, which can be costly.
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.
Fortinet FortiGate-VM offers robust security, ease of use, and quick deployment, with versatile integration for various business sizes.
OPNsense offers flexibility, strong security, user-friendly management, and open-source benefits with robust VPNs, integration, and frequent updates.
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 more integrated we become, the less we spend on solving bugs and issues, allowing us to reduce time focusing on understanding and improving our network.
FortiGate VM allows me to avoid the hardware lease recycle every five to eight years.
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.
 

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)
Fortinet FortiGate-VM
Ranking in Firewalls
9th
Average Rating
8.4
Reviews Sentiment
7.5
Number of Reviews
120
Ranking in other categories
No ranking in other categories
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
 

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 Fortinet FortiGate-VM is 1.9%, up from 1.5% compared to the previous year. The mindshare of OPNsense is 11.5%, down from 17.6% 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.
Pietro Di Blasi - PeerSpot reviewer
Organize networks efficiently while benefiting from strong reliability and support
The main use is for clients who are migrating to the cloud. We started this journey during the pandemic, and the main case is with clients who are moving to either a private or a public cloud The solution allows us to organize our networks and access within one vendor, using an integrated…
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.
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Top Industries

By visitors reading reviews
Educational Organization
20%
Computer Software Company
14%
Comms Service Provider
7%
Manufacturing Company
6%
Computer Software Company
20%
Financial Services Firm
8%
Manufacturing Company
6%
Government
6%
Computer Software Company
16%
Comms Service Provider
13%
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 ...
Features comparison between Palo Alto and Fortinet firewalls
In the best tradition of these questions, Feature-wise both are quite similar, but each has things it's better at, it...
Which would you recommend - FortiGate VM or Azure Firewall?
Both of these solutions are excellent options that provide flexible scalability and solid security. Fortinet Fortigat...
What do you like most about Fortinet FortiGate-VM?
An enhanced security solution for any kind of alert that we have configured.
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...
 

Also Known As

FortiGate 60b, FortiGate 60c, FortiGate 80c, FortiGate 50b, FortiGate 200b, FortiGate 110c, FortiGate, Fortinet Firewall
FortiGate Virtual Appliance, FortiGate-VM
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
Security7 Networks, COOPENAE
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 Fortinet FortiGate-VM vs. OPNsense and other solutions. Updated: April 2025.
849,686 professionals have used our research since 2012.