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Azure Firewall 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
6.8
Fortinet FortiGate delivers cost efficiency, rapid ROI, and enhanced security, reducing downtime and operational expenses for users.
Sentiment score
1.0
Azure Firewall's OPEX model is cost-effective, benefiting smaller organizations with clear uses and offering significant security and cost savings.
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.
 

Customer Service

Sentiment score
6.7
Fortinet FortiGate support receives mixed reviews, with praise for expertise but criticism for inconsistent response times and language barriers.
Sentiment score
4.4
Azure Firewall support is generally responsive, with multilingual availability, but some experience delays and varying effectiveness due to outsourcing.
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.
Microsoft provides excellent customer support, especially with premium support plans.
Nevertheless, the final support from Microsoft remains effective.
With Azure products, customer support is really good.
I mainly rely on community support since the solution is open source.
 

Scalability Issues

Sentiment score
7.2
Fortinet FortiGate is highly rated for scalability, accommodating growth efficiently, though hardware upgrades may be needed for expansion.
Sentiment score
7.3
Azure Firewall's autoscale feature allows effortless scalability, though some prefer alternatives for large enterprises needing higher performance.
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.
Based on my experience, I would rate it nine out of ten for scalability.
Azure Firewall is highly scalable, and I would give it a scalability rating of nine out of ten.
When we started deploying the solution, it was not a mature product at times.
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
7.7
FortiGate is praised for its robust reliability, minor update issues, and consistently stable performance across various use cases.
Sentiment score
8.6
Azure Firewall is highly reliable, with users praising its stability, efficiency, and robustness, even resolving rare issues promptly.
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.
The stability of Azure Firewall is excellent.
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 lower fees, better interface, integration, support, consistent updates, and improved documentation and features.
Azure Firewall falls short in advanced features, usability, pricing, support, scalability, and connectivity compared to competitors.
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.
Improvement in reporting and better visibility into network traffic would also be beneficial.
Azure Firewall could improve its reporting capabilities.
It lacks some functionalities when compared to competitors like Check Point and Fortinet, such as WAF or load balancing.
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.
 

Setup Cost

Fortinet FortiGate is competitively priced, offering cost-effective options, though renewal costs and additional features may increase expenses.
Azure Firewall offers a flexible pay-as-you-go model, though premium functions can be costly compared to competitors.
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.
Azure Firewall is quite expensive, with a high cost.
Azure Firewall is subscription-based, which is advantageous as there is no need for upfront payment.
Prices have increased recently
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 valued for its security features, ease of use, flexibility, reliability, and affordability across organizations.
Azure Firewall provides scalable security features, easy Azure service integration, and automation, ensuring excellent connectivity and protection.
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.
We have to combine multiple features and multiple products, and then we can say that this is more cost-effective and works properly to ensure the security posture of our cloud deployments.
The premium version includes all traditional firewall features, reducing the need for separate compute resources.
We created rules in the firewall to ensure that the traffic would be diverted to the right endpoint and made sure only specific application VMs could reach the database server.
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.
 

Categories and Ranking

Fortinet FortiGate
Sponsored
Ranking in Firewalls
2nd
Average Rating
8.4
Reviews Sentiment
7.1
Number of Reviews
380
Ranking in other categories
Software Defined WAN (SD-WAN) Solutions (1st), WAN Edge (1st)
Azure Firewall
Ranking in Firewalls
12th
Average Rating
7.4
Reviews Sentiment
6.4
Number of Reviews
42
Ranking in other categories
Microsoft Security Suite (11th)
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 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 Azure Firewall is 2.2%, down from 2.5% compared to the previous year. The mindshare of OPNsense is 11.4%, down from 17.7% 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.
AnvarSadique - PeerSpot reviewer
Easy setup and effective traffic routing enhance security
In terms of improvements, I think the price could be a concern as Azure ( /products/microsoft-azure-reviews ) services are often more expensive compared to other firewalls. However, the functional aspects of Azure Firewall met our needs. While I found the interface not particularly user-friendly, this is a common issue across vendors.
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
15%
Educational Organization
10%
Comms Service Provider
8%
Manufacturing Company
7%
Computer Software Company
15%
Financial Services Firm
10%
Government
9%
Manufacturing Company
7%
Computer Software Company
16%
Comms Service Provider
14%
Government
6%
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 a better choice, Azure Firewall or Palo Alto Networks NG Firewalls?
Azure Firewall Vs. Palo Alto Network NG Firewalls Both solutions provide stellar stability and security. Azure Firew...
How does Azure Firewall compare with Palo Alto Networks VM Series?
Both products are very stable and easily scalable. The setup of Azure Firewall is easy and very user-friendly and the...
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 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
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
Information Not Available
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 Azure Firewall vs. OPNsense and other solutions. Updated: July 2025.
861,481 professionals have used our research since 2012.