OPNsense vs Stormshield Network Security comparison

OPNsense and Stormshield are both solutions in the Firewalls category. Additionally, 95% of OPNsense users are willing to recommend the solution, compared to 85% of Stormshield users who would recommend it.

Comparison Buyer's Guide

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Executive Summary

We performed a comparison between OPNsense and Stormshield Network Security based on real PeerSpot user reviews.

Find out in this report how the two Firewalls solutions compare in terms of features, pricing, service and support, easy of deployment, and ROI.

To learn more, read our detailed OPNsense vs. Stormshield Network Security Report (Updated: December 2025).

Buyer's Guide

OPNsense vs. Stormshield Network Security

December 2025

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Review summaries and opinions

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:

Categories and Ranking

Fortinet FortiGate

Featured Reviews

Vasu Gala

Manager, Information Technology Operation/Presales at TechMonarch

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.

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Moutaz Sheikh Alard

ISO 27001 Lead Implementer at a consultancy with 11-50 employees

Has helped simulate enterprise security setups and strengthens network segmentation practices

For my capstone, I use OPNsense for my project and its broader benefits for enterprise and cybersecurity context. OPNsense is an open source based firewall and routing platform. It offers enterprise-grade features such as intrusion detection and prevention system, VPN support, traffic shaping, and web filtering, all without license cost. This platform has a modular design, a clean web-based GUI, and frequent updates that prioritize security and usability. It competes with commercial firewalls such as Cisco ASA, FortiGate, and Palo Alto, but stands out because it's community-driven, cost-effective, and transparent. I find OPNsense's feature of acting as a central firewall and gateway most valuable, providing robust point segmentation between the internal network and DMZs in my capstone project, intrusion detection to monitor malicious traffic, VPN services for secure remote access, and logging and monitoring for compliance and auditing. This allows me to simulate a real-world enterprise environment on a smaller scale, demonstrating both security hardening and network efficiency. OPNsense impacts my projects and home network positively because its cost-effectiveness is perfect for lab and enterprise setup without expensive licensing. The flexibility, easy VLAN and DMZ configuration supports different zones such as web servers, mail servers, and log servers. The security-first design for IDS/IPS integration helps me showcase modern defense-in-depth strategies. The user-friendly management through the web GUI makes it possible to manage complex firewall rules clearly, which is critical when documenting and presenting a capstone. Scalability is also an advantage. Although my project is lab-based, OPNsense can scale into production deployments in SMBs and enterprise.

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Benjamin

Network Engineer at ACS2I

The intrusion detection system helps our organization by automatically detecting and responding to potential threats

The tool's most valuable feature is its dashboard, which helps you manage different aspects of a single page. The intrusion detection system helps our organization by automatically detecting and responding to potential threats. It operates similarly to Darktrace, which detects and responds automatically based on the security rules you apply. Initially, you configure everything to block, and then you can whitelist specific items as needed.

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Quotes from Members

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:

Pros

"The license management is very valuable. You can get a new license each year, or you can enroll every two to four years. You can get the logs, and you will get the information on the risk in your network and the entire organization. With this information, you can take action on your actives, computers, or devices. You can bring your own device as an SSE."

"The best features of Fortinet FortiGate include the simple user interface."

"The most valuable features are simplicity, management, and that it's constantly evolving."

"In terms of security, we have not experienced any security flaws or loopholes, and it has proven to be quite stable."

"Run Script is the best tool to use in Fortinet FortiGate with multiple environments."

"Customers are more inclined towards FortiGate because of application control, web filtering, and anti-spam features. The support from the FortiGate team is good, and price-wise, it is affordable."

"Fortigate is very scalable to serve our customers' needs. We have scaled already from fifty to more than a hundred instances of Fortinet FortiGate. Around 20 staff are required for deployment and maintenance, mostly engineers."

"Before using this solution, we had so many problems accessing our resources because we don't have a lot of internet bandwidth. And by using application control and traffic shaping, we were able to manage user to quickly access services that are important. This tool has aided to the simplicity of our day-to-day management."

More Fortinet FortiGate pros

"I mostly rely on the solution's network intrusion detection and prevention system, along with other systems, CMs, and log management."

"The solution is good for a basic firewall for a small business or for home use."

"The graphic user interface is very good and it is user-friendly which makes the product easy-to-use."

"The VPN server feature is the most valuable. It is integrated with Radius and AAA for doing accounting and authentication. Insight view is also an important feature for me at this time. It allows me to assess our network traffic. I also like the firewall feature. The BSD kernel has a packet filter. It is one of the most solid frameworks for firewalls. Its user interface is one of the best interfaces I have used."

"OPNsense is easy to use and open source."

"The most valuable features are reporting, the Sensei plugin, and firewall capabilities."

"OPNsense definitely gives me peace of mind and helps my workflow because of the network isolation, as I can have multiple subnets without having to worry about one affecting the other."

"We have been operating here in our lab for several months, and everything appears to be extremely stable."

More OPNsense pros

"It's an easy, straightforward management platform to use."

"Our organization's main concern is stability, and this is a stable solution."

"I like how you can configure the rules. There is the task for the rules and a task for the network configuration. It also provides SMD filtering, and it can be integrated with the active directory for the users, their mission, and the VPN configuration. We are here in Sudan, and Stormshield didn't work in Sudan for more than a decade. Stormshield is a very strong firewall and very easy to configure and maintain. I am just working with the firewall solution, and we don't have any other solutions like endpoint solutions or something like that."

"The tool's most valuable feature is its dashboard, which helps you manage different aspects of a single page."

"I can see what traffic is going on. I can easily block any programs from attacks."

"Ease of use is the best feature of the product."

"The solution has improved my organization because I can see what traffic is happening and I can use it to block and prevent attacks."

"A very robust product."

More Stormshield Network Security pros

Cons

"We had some issues in the beginning while setting it up, but after doing the firmware update, it is working fine."

"The feature which gives us a lot of pain is ASIC architecture."

"In my opinion, Fortinet FortiGate could be improved by making the appliance smaller than what we have here, as it is pretty big."

"The solution could be more user friendly."

"It is stable, but its stability can be improved."

"FortGate's IPS reporting could be made better by giving more details regarding the source and destination of network traffic when it comes to the overview section. This would allow me to more easily follow the flow of traffic based on IP addresses, without having to integrate the IPS with other products that perform more sophisticated traffic analysis."

"There should be better customization in the IPS."

"It needs to improve its ISP load balancing."

More Fortinet FortiGate cons

"The support for OPNsense is good because we have documents available on the internet. The support could improve a little."

"They should improve IPEs for security in the future."

"There are issues with stability and reliability."

"I would like to see better SD-WAN performance."

"The solution could be more secure."

"There are a few weaknesses. For example, there is a lack of some features that I have in certain commercial products."

"We did not like the fact that you have to configure everything with the graphic user interface. We have used other firewalls, such as FortiGate, that you can configure via code. OPNsense is not easy to integrate. When you are deploying via GitHub or another source repository, this is not possible. That's one thing we didn't like much."

"The IPS solution could be more reliable."

More OPNsense cons

"This solution has a big problem with web filtering and it needs to be improved."

"Not all the fields are activated yet and we were informed that it will take at least one month."

"Stormshield Network Security is quite expensive."

"The filtering configuration could be better. We have some difficulties with the filtering configuration and the filter extension. It's not that easy. It's not that straightforward. In the next release, I would like to see a reporting system. Stormshield doesn't have any tutorials on how to do the configuration and things like that. They just have documentation on the website. If you want to configure, for example, Cisco or Fortinet, you can find tutorials on YouTube. They show you how to configure the features, and so on. In Stormshield, there is nothing on social media or the internet on how to configure different things. The lack of documentation or the lack of material makes it difficult for others to adopt this solution."

"The SD card could be more secure."

"Improvement is needed in terms of the technical support of the manufacturer."

"This is not a next-generation firewall."

"A more user-friendly interface would be helpful."

More Stormshield Network Security cons

Pricing and Cost Advice

"Licensing for Fortinet FortiGate is on a yearly basis. Pricing for it is a bit high. It could be cheaper."

"Its pricing is good. It's average or normal as compared to Palo Alto and Check Point firewalls."

"The solution could be better priced."

"The price is high compared to some of the other solutions."

"For the price, I'd rate it a ten because it's very cost-effective."

"The license of Fortinet FortiGate should be reduced."

"Its price could be better."

"We pay about $4,000 for a yearly license, and there aren't any additional fees."

More Fortinet FortiGate pricing and cost advice

"We are not paying any licensing fees. OPNsense is completely free for us."

"It costs about $1000."

"I would rate the pricing a nine out of ten, especially considering the availability of a free community edition."

"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."

"OPNsense is an open-source solution and it is free to use."

"It's not expensive."

"It's a free solution."

"It is free."

More OPNsense pricing and cost advice

"We bought a three-year license, and we renew it whenever it expires. The price could be better. It's always very expensive."

"The pricing could be better."

"The price of this solution and the price of support are ok."

"I think the price is good."

"For mid-sized companies, they sell their appliances for good prices."

"We chose Stormshield for its price, as the Azure firewall was too expensive."

"The SN200 series costs between $500 USD and $600 USD per year, whereas the SN700 series costs approximately $1,000 annually."

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Top Industries

By visitors reading reviews

Computer Software Company

12%

Comms Service Provider

Manufacturing Company

Financial Services Firm

Comms Service Provider

17%

Computer Software Company

11%

Manufacturing Company

University

Comms Service Provider

16%

Computer Software Company

15%

Manufacturing Company

Government

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

By reviewers
Company Size	Count
Small Business	357
Midsize Enterprise	133
Large Enterprise	188

By reviewers
Company Size	Count
Small Business	30
Midsize Enterprise	5
Large Enterprise	8

By reviewers
Company Size	Count
Small Business	9
Midsize Enterprise	5
Large Enterprise	2

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...

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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...

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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 ...

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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...

See all answers

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.

See all answers

What is your experience regarding pricing and costs for OPNsense?

My experience with pricing, setup cost, and licensing is that since OPNsense is free, the licensing and setup was eas...

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What advice do you have for others considering Stormshield Network Security?

The tool is like a firewall and works well. I don't have any issue with it. I rate it an eight out of ten.

See all answers

Comparisons

Sophos Firewall vs Fortinet FortiGate

Compared 20% of the time

Cisco Secure Firewall vs Fortinet FortiGate

Compared 13% of the time

Netgate pfSense vs Fortinet FortiGate

Compared 6% of the time

Palo Alto Networks NG Firewalls vs Fortinet FortiGate

Compared 3% of the time

SonicWall TZ vs Fortinet FortiGate

Compared 3% of the time

More Fortinet FortiGate Competitors

Netgate pfSense vs OPNsense

Compared 46% of the time

IPFire vs OPNsense

Compared 11% of the time

Sophos Firewall vs OPNsense

Compared 9% of the time

Sophos UTM vs OPNsense

Compared 3% of the time

Untangle NG Firewall vs OPNsense

Compared 2% of the time

More OPNsense Competitors

Netgate pfSense vs Stormshield Network Security

Compared 11% of the time

WatchGuard Firebox vs Stormshield Network Security

Compared 8% of the time

Sophos Firewall vs Stormshield Network Security

Compared 8% of the time

Palo Alto Networks NG Firewalls vs Stormshield Network Security

Compared 5% of the time

Sophos UTM vs Stormshield Network Security

Compared 4% of the time

More Stormshield Network Security Competitors

Product Reports

Buyer's Guide

Fortinet FortiGate

January 2026

Download Fortinet FortiGate product report

Buyer's Guide

OPNsense

January 2026

Download OPNsense product report

Buyer's Guide

Stormshield Network Security

January 2026

Download Stormshield Network Security product report

Also Known As

Fortinet FortiGate Next-Generation Firewall

No data available

NETASQ Firewalls

Overview

Fortinet FortiGate is a versatile network security tool offering features like VPN, firewall, web filtering, intrusion prevention, and scalability. It is known for its performance and integration with other Fortinet products, making it a preferred choice for robust cybersecurity.

Fortinet FortiGate stands out as a comprehensive cybersecurity solution with strong performance and ease of configuration. It delivers unified threat management, integrating features such as dynamic routing, SD-WAN support, and centralized management. Despite its strengths, improvements in the web interface's stability, pricing structures, and reporting capabilities are needed. Users seek better integration with third-party tools and automation advancements to enhance the experience further. These enhancements, alongside improvements in bandwidth management and the reduction of licensing costs, are points of interest for users looking to capitalize on FortiGate's extensive capabilities.

What are Fortinet FortiGate's key features?

VPN: Ensures secure remote connections.
Firewall: Protects against unauthorized access.
Web Filtering: Blocks malicious sites and content.
Application Control: Manages and controls applications.
Intrusion Prevention: Detects and prevents vulnerabilities.
SSL Inspection: Enhances security by inspecting encrypted traffic.

What benefits should be considered when evaluating Fortinet FortiGate?

Affordability: Offers cost-effective security solutions.
Reliability: Known for consistent and stable performance.
Integration: Seamlessly integrates with other Fortinet products.
Comprehensive Protection: Provides broad threat protection capabilities.

Fortinet FortiGate is widely implemented across industries as a primary firewall system for securing internet gateways and safeguarding data centers. It supports businesses in achieving SD-WAN integration and enhances cybersecurity by providing essential features like antivirus, web filtering, and application control. Enterprises utilize FortiGate for securing remote connections and ensuring compliance with security standards, making it adaptable for different network sizes and industries.

Fortinet

OPNsense is an adaptable open-source firewall and routing platform appreciated for its flexibility, scalability, and user-friendly interface. It is equipped with robust security features and offers excellent reporting and visibility, essential for small businesses and home setups.

OPNsense stands out for its modular design, allowing cost-effective customization. This system supports VPNs and various firewall capabilities, making it suitable for securing networks from malicious traffic. Its frequent updates and extensive documentation, combined with a supportive online community, enhance user experience. However, there is room for improvement in integration with virtual servers and Azure. Scalability and hardware updates are important for large-scale environments, and users desire more reliable VPN solutions and enhanced threat intelligence tools.

What are OPNsense's most important features?

Flexibility: Easily customizable due to its open-source nature.
Robust Security: Advanced security features for network protection.
User-Friendly Interface: Simplified management and configuration.
Frequent Updates: Regular improvements and new features.
Dense Documentation: Extensive resources and community support.

What benefits should users look for in reviews?

Cost-Effectiveness: Open-source design reduces costs.
Scalability: Ability to grow with business needs.
Customizability: Tailored solutions for different requirements.
Community Support: Access to a strong network of resources and peers.

OPNsense is implemented in industries requiring VPN and firewall functions, supporting site-to-site connections, protecting servers, and managing commercial network traffic. Companies apply it for security, UTM, SD-WAN, content filtering, intrusion detection, and prevention, utilizing its open-source nature and effectiveness as a next-generation firewall.

OPNsense

NETASQ's integrated intrusion prevention engine uses protocol conformity analysis, application filtering and antivirus analysis to inspect authorized traffic flows and strengthen application security. NETASQ enables you to establish and configure user-based security policies, giving you greater control over which network resources each user is authorized to access.

Stormshield

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.

ACESUR group, Ministry of Education Oman, Anios Laboratories, Zain, DLM Location

Buyer's Guide

OPNsense vs. Stormshield Network Security

December 2025

Free Report: OPNsense vs. Stormshield Network Security

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