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: September 2025).

Buyer's Guide

OPNsense vs. Stormshield Network Security

September 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 most valuable feature is the web filter."

"The overall features of Fortinet FortiGate SWG are good."

"The most useful features in Fortinet FortiGate are the security features, where we can analyze what kind of traffic is inside our network, and we also utilize ZTNA for limiting and managing our network access."

"The best features of Fortinet FortiGate are its simplicity, ease of installation, and ease of functionality."

"I find the ease of configuring specific policies to be the most valuable feature of the Fortinet FortiGate firewall."

"What I like the most is the configuration and that it's simple, and straightforward to maintain."

"FortiGate Next Generation Firewall has a stateless balance proposition"

"SSL-VPN is very useful for us and has been very reliable."

More Fortinet FortiGate pros

"The solution has high availability."

"OPNsense is very stable, easy to upgrade, and maintain."

"The initial implementation process is simple."

"Overall, I would rate OPNsense as nine out of ten."

"YouTube provides video explanations, and that brings you to speed, instead of sitting down and reading a 200-page document on the product."

"The interface and the dashboard are the most valuable features of this solution."

"URL blocking, Wireguard, Tail Scale, Engine Blocker, and VPN are the most valuable features for me."

"OPNsense is highly stable."

More OPNsense pros

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

"Easily manageable in a variety of environments."

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

"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."

"The most valuable features are the IPS, the firewall function, and the price."

"The scalability of the solution is good."

"I like that it works fine. Stormshield is a very good solution."

"A very robust product."

More Stormshield Network Security pros

Cons

"Fortinet Fortigate could benefit by simplifying some of their processes."

"The visibility of the network can be better. The GUI can be improved for better visibility of the network flow. Other solutions have better GUI in terms of network visibility."

"The solution could be more user friendly."

"There is room for improvement related to the logging and reporting aspect."

"We would like to see an improvement in the consistency of the product's performance levels."

"Application management can be improved."

"Another issue is how deduplication services don't work reliably after enabling deduplication on Fortinet."

"Improvements could be made when companies expand and need better equipment and more licenses."

More Fortinet FortiGate cons

"The scalability needs improvement."

"There should be more technical documentation."

"I think the most important thing is that it should be easily accessible, but currently, that doesn't seem to be the case. We need a hardware platform that's based on common standards and open computing principles, which would be like a commodity and benefit us greatly."

"There is room for improvement in SSL inspection."

"OPNsense can be improved by making it more user-friendly, as its current UI is not that user-friendly when compared to paid software such as Sophos."

"The solution could be more secure."

"OPNsense could improve by making the configuration more web-based rather than shell or command-line-based."

"The only thing that I would like to see improved is the Insight or the NetFlow analysis part. It would be good to have the possibility to dig down on the Insight platform. Right now, we can easily do only a few analyses. If this page becomes more powerful, it surely will be a well-adopted platform."

More OPNsense cons

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

"With Stormshield, there are difficulties joining things, and it can be complex depending on the architecture."

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

"The SD card could be more secure."

"The product must improve its pricing."

"It could be better if it were more user-friendly. It's too complicated for us to use it. The price could be better as well."

"Stormshield Network Security is quite expensive."

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

More Stormshield Network Security cons

Pricing and Cost Advice

"The product pricing is reasonable."

"The solution could be better priced."

"The price of Fortinet FortiGate could improve, it is expensive."

"The Indian market is different than the European and American markets. When you compare they need to be a bit more aggressive on pricing."

"The pricing is perfect."

"It is not the cheapest one, but its price is very competitive."

"I pay €1,200 per year for the license along with Fortinet's 81E firewall appliance. I would rate this pricing as 3/5 stars, and I believe the price is reasonably similar to its competitors in the market, being somewhere in the middle."

"The value is the capability of having multiple services with one unique license, not having the limitation per user licensing schema, like other vendors."

More Fortinet FortiGate pricing and cost advice

"The price of OPNsense is good."

"It is open source and free."

"We are using the paid version."

"I've used the free version. My computer with two network cards at home allows me to try as many different software options as I want. I did pay for the license, but it was for the Zenarmor license, which is the packet inspection tool. They use AI for packet inspection, which integrates with OPNsense and pfSense."

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

"OPNsense is open source software so at this time it is free for us to use."

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

"I'm using the free version of OPNsense. I didn't check the pricing for the solution because I still need to test it before getting the approval to purchase OPNsense, and it isn't easy to get approval from the higher-ups."

More OPNsense pricing and cost advice

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

"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."

"The pricing could be better."

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Top Industries

By visitors reading reviews

Computer Software Company

15%

Comms Service Provider

Manufacturing Company

Financial Services Firm

Computer Software Company

16%

Comms Service Provider

16%

University

Educational Organization

Computer Software Company

19%

Comms Service Provider

18%

Government

10%

Manufacturing Company

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

By reviewers
Company Size	Count
Small Business	350
Midsize Enterprise	130
Large Enterprise	187

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...

See all answers

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 ...

See all answers

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 XG vs Fortinet FortiGate

Compared 17% of the time

Cisco Secure Firewall vs Fortinet FortiGate

Compared 11% of the time

Netgate pfSense vs Fortinet FortiGate

Compared 9% of the time

Cisco Meraki MX vs Fortinet FortiGate

Compared 4% of the time

WatchGuard Firebox vs Fortinet FortiGate

Compared 4% of the time

More Fortinet FortiGate Competitors

Netgate pfSense vs OPNsense

Compared 37% of the time

IPFire vs OPNsense

Compared 15% of the time

Sophos XG vs OPNsense

Compared 8% of the time

Untangle NG Firewall vs OPNsense

Compared 3% of the time

Sophos XGS vs OPNsense

Compared 3% of the time

More OPNsense Competitors

Netgate pfSense vs Stormshield Network Security

Compared 13% of the time

WatchGuard Firebox vs Stormshield Network Security

Compared 7% of the time

Palo Alto Networks NG Firewalls vs Stormshield Network Security

Compared 5% of the time

Sophos XGS vs Stormshield Network Security

Compared 5% of the time

Cisco Secure Firewall vs Stormshield Network Security

Compared 4% of the time

More Stormshield Network Security Competitors

Product Reports

Buyer's Guide

Fortinet FortiGate

September 2025

Download Fortinet FortiGate product report

Buyer's Guide

OPNsense

September 2025

Download OPNsense product report

Buyer's Guide

Stormshield Network Security

September 2025

Download Stormshield Network Security product report

Also Known As

No data available

NETASQ Firewalls

Overview

Fortinet FortiGate excels in providing integrated VPN, firewalling, and Unified Threat Management (UTM) with centralized management and high availability. It supports remote access and comprehensive threat protection, making it a preferred choice for securing networks.

Fortinet FortiGate offers a robust security platform with features such as strong intrusion prevention, application control, and web filtering. Its integration with Active Directory and SD-WAN functionality provides scalable solutions for large networks. Users appreciate its ease of use through centralized management interfaces, ensuring robust security with flexible configurations. However, FortiGate could enhance its graphical interface and technical support responsiveness, address firmware bugs and costly licensing, improve logging, integrate better with third-party tools, and strengthen scalability and memory for log storage. Complexity in configuration and the need for intuitive features are noted challenges, and there's a demand for advanced security, zero-trust capabilities, and AI integration.

What are the key features of Fortinet FortiGate?

VPN: Secure remote access and connectivity.
Firewalling: Protects networks from unauthorized access and attacks.
UTM: Offers a comprehensive approach to threat management.
SD-WAN: Optimizes traffic routing for efficient network performance.
Web Filtering: Controls and monitors web access and ensures Internet security.

What benefits or ROI should be considered?

Centralized Management: Simplifies administration and monitoring.
High Availability: Ensures consistent security and network availability.
Scalability: Adapts to the needs of growing networks.
Comprehensive Threat Protection: Provides robust security measures.
Ease of Use: Minimizes the complexity of security management.

Fortinet FortiGate is widely implemented across industries like education, finance, and government. Companies use it for firewall protection, VPN, and SD-WAN capabilities, ensuring secure perimeter and data center security. It facilitates remote access management and traffic routing optimization, offering reliable security and connectivity solutions.

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

September 2025

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