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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
5.6
Fortinet FortiGate offers affordability and functionality, leading to cost savings, reduced downtime, and enhanced security for organizations.
Sentiment score
8.2
Fortinet FortiGate-VM enhances network stability and security, offering cost savings and scalability, though ROI perceptions vary among users.
Sentiment score
2.5
Entities benefited from rapid returns and cost savings with OPNsense, offering superior threat management compared to Check Point and FortiNet.
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.
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
6.4
Fortinet FortiGate customer service is responsive but inconsistent, with praise for knowledge and critique of efficiency and response times.
Sentiment score
6.6
Fortinet FortiGate-VM support is praised for responsiveness but faces criticism for response times, expertise, and regional consistency.
Sentiment score
6.4
Many users rely on forums for support, expressing mixed satisfaction with OPNsense's accessibility, cost, and technical support.
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.
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.
 

Scalability Issues

Sentiment score
6.9
Fortinet FortiGate scales well when correctly sized, though design flaws and licensing issues can cause problems.
Sentiment score
8.1
Fortinet FortiGate-VM offers scalable and efficient performance in virtual environments, with flexibility and enhanced capacity compared to hardware.
Sentiment score
6.5
OPNsense is scalable for diverse organizations, efficiently supporting different user volumes, with some challenges in high-volume voice traffic.
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.
It can start with a single core and scale up to a 32-core license for a robust deployment.
Aside from these aspects, it demonstrated good scalability.
It supports routing, VPN setups, and traffic monitoring with additional packages like Snort and Suricata.
OPNsense is an extremely scalable solution.
 

Stability Issues

Sentiment score
7.4
Fortinet FortiGate is praised for stability and reliability, with minor bugs, quickly addressed by regular firmware updates.
Sentiment score
7.9
Fortinet FortiGate-VM is generally reliable, with occasional stability issues that improve with proper sizing, configuration, and updates.
Sentiment score
8.5
OPNsense is stable with high ratings, despite issues with VPN failover, occasional bugs, and hardware compatibility concerns.
We're experiencing 99.999% availability consistently.
I would rate the stability of Fortinet FortiGate a ten out of ten.
Currently, we are experiencing a general outage of one of the main internet service providers of the Dominican Republic, and we have not been impacted in our operations because with SD-WAN, we have another internet service provider and we are working with the second WAN connection without any disruption.
Recently they have had more, requiring internal testing to ensure deployment stability.
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.
At the latest code level, I haven't experienced any crashes.
 

Room For Improvement

Fortinet FortiGate needs simplified interface, expanded features, better stability, improved support, and competitive pricing for enhanced user experience.
Fortinet FortiGate-VM requires improvements in UI, stability, support, pricing, cloud integration, analytics, and user-friendly management.
OPNsense faces challenges with integration, user interface, documentation, scalability, performance, and security features, needing enhancements in various areas.
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.
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.
We cannot really position the Fabric if the licenses, renewal parts, or other components have monetary requirements that hinder full utilization.
For high availability, it's crucial to have a method in place where a designated component oversees the entire process.
Improved guidance on package usage and integration beyond relying on external tutorials or community support would be beneficial.
I would like the APIs to be more mature and more developed and have more options to automate threat hunting.
 

Setup Cost

Fortinet FortiGate offers competitive pricing with clear licensing, value bundles, and cost-effective performance features for enterprise buyers.
Fortinet FortiGate-VM is competitively priced, with flexible licensing, though costs can rise with scaling and advanced features.
OPNsense is a cost-effective, flexible solution for enterprises, preferred over costly alternatives like FortiGate and Palo Alto.
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.
The license for Fortinet FortiGate-VM costs 100K to 150K Philippine pesos per year for VM1 or VM2.
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 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 is favored for its security, VPN, ease of use, SD-WAN, advanced protection, and affordability.
Fortinet FortiGate-VM provides robust security, easy management, seamless integration, flexibility, and cost-effective protection with comprehensive features and control.
OPNsense is valued for its flexibility, user-friendly interface, robust features, frequent updates, and compatibility with useful plugins.
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 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.
Fortinet Security Fabric and real-time threat response capabilities are the main selling points.
The most valuable features include the basic firewall functionality and the GeoIP location services.
OPNsense is easy to use and open source.
The DNS-level filtering is impressive for thwarting time scanners.
 

Categories and Ranking

Fortinet FortiGate
Sponsored
Ranking in Firewalls
2nd
Average Rating
8.4
Reviews Sentiment
6.9
Number of Reviews
415
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
7.4
Number of Reviews
121
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 August 2025, in the Firewalls category, the mindshare of Fortinet FortiGate is 20.8%, up from 17.8% compared to the previous year. The mindshare of Fortinet FortiGate-VM is 1.9%, up from 1.6% compared to the previous year. The mindshare of OPNsense is 11.6%, down from 17.6% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Firewalls Market Share Distribution
ProductMarket Share (%)
Fortinet FortiGate20.8%
OPNsense11.6%
Fortinet FortiGate-VM1.9%
Other65.7%
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.
Sitti Ridzma Salahuddin - PeerSpot reviewer
Integrates seamlessly and helps with real-time threat response
Since the solution we offered was a complete suite with Fortinet FortiGate-VM, it was easier for them to manage because they have FortiManager as well. The main reason they wanted to position FortiGate in the cloud was so that they could easily deploy through FortiManager. That was the selling point we had for them. Especially for their multiple branches, where they had approximately 60 sites, and some assets were in AWS, it was really a good deployment opportunity. FortiManager and FortiAnalyzer were also part of that solution.
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.
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Top Industries

By visitors reading reviews
Computer Software Company
16%
Comms Service Provider
9%
Manufacturing Company
7%
Financial Services Firm
6%
Computer Software Company
17%
Financial Services Firm
7%
Comms Service Provider
7%
Government
6%
Computer Software Company
16%
Comms Service Provider
15%
University
6%
Educational Organization
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business258
Midsize Enterprise101
Large Enterprise143
By reviewers
Company SizeCount
Small Business63
Midsize Enterprise26
Large Enterprise31
By reviewers
Company SizeCount
Small Business27
Midsize Enterprise4
Large Enterprise7
 

Questions from the Community

Which is the better NGFW: Fortinet Fortigate or Cisco Firepower?
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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 ...
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?
The pricing is competitive when compared to vendors like Palo and FortiNet.
 

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: July 2025.
865,985 professionals have used our research since 2012.