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OPNsense vs Sophos XG comparison

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Comparison Buyer's Guide

Executive SummaryUpdated on Jul 13, 2025

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
5.7
Fortinet FortiGate offers cost-effective security with quick deployment, improving efficiency, reducing downtime, and providing a strong return on investment.
Sentiment score
4.4
OPNsense offers quick ROI, annual savings, improved network protection, efficiency, but faces challenges like market disruptions and cyber threats.
Sentiment score
6.7
Sophos XG offers comprehensive security and cost-efficiency, with reduced personnel costs and simplified configurations, despite initial expenses.
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.
The network attacks reduced by approximately 60% after using that, even without customizing the custom configuration yet.
For a very little investment, I was able to increase the security of my network.
The graphical interface of Sophos XG simplifies configurations, saving time in support and troubleshooting compared to the Linux-based solution I previously used.
We purchased endpoint security for the first time last year, and even without endpoint security, it provides comprehensive security.
It's good, but I would still say it's higher by about 10-15 percent compared to other market products with similar configurations.
 

Customer Service

Sentiment score
6.4
Fortinet FortiGate support is mostly praised for responsiveness and knowledge, though inconsistencies exist in complex cases or regions.
Sentiment score
5.0
Users often solve issues using online resources, valuing community help, but suggest OPNsense centralize and improve support options.
Sentiment score
6.4
Sophos XG support receives mixed reviews, praised for expertise but criticized for delays and inconsistent service from external centers.
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.
Compared to some open-source projects with weak support, OPNsense stands out for having both a strong community and commercial backing options.
I mainly rely on community support since the solution is open source.
OPNsense is open source, so you have to rely on the community for customer support.
They are professional, respond quickly, and help resolve issues effectively.
I rate the technical support a ten out of ten.
Their team was quick to diagnose and resolve the problem by exchanging the equipment within two weeks.
 

Scalability Issues

Sentiment score
7.0
Fortinet FortiGate offers scalability and easy integration for diverse environments, catering to businesses from small to large enterprises.
Sentiment score
7.4
OPNsense is scalable and adaptable, supporting small to large deployments with flexibility in hardware upgrades and virtual machines.
Sentiment score
7.0
Sophos XG scales for different organizations with cloud-based flexibility, despite hardware limits, supporting small to medium businesses effectively.
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.
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.
You can scale up to multiple firewalls with centralized management.
You can't upgrade memory or storage on a specific model, which limits scalability.
I rate the scalability a nine out of ten.
 

Stability Issues

Sentiment score
7.5
Fortinet FortiGate is highly stable and reliable, excelling in continuous operation with effective network management, despite occasional update issues.
Sentiment score
8.6
Users find OPNsense generally stable, though VPNs, updates, and hardware compatibility can occasionally cause issues.
Sentiment score
7.9
Sophos XG is praised for strong stability and reliability, despite occasional bugs and increased resource demands with updates.
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.
For home and small network use, OPNsense is also reliable, providing enterprise-grade security at no cost.
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.
Sophos XG is very stable, even when serving as a DHCP server.
Sophos XG is resource-greedy, affecting performance even on newer computers.
It's on 24/7 and has consistently been reliable over the years.
 

Room For Improvement

Users express concern over Fortinet FortiGate's interface stability, functionality, performance issues, and call for improved support and features.
OPNsense's challenges include interface usability, integration issues, and the need for improved VPN, analytics, and virtualization support.
Sophos XG users seek improved UI, integration, performance, VPN setup, support, reporting, protection, SD-WAN capabilities, pricing, and documentation.
Investing in a solution that can accommodate such growth would be more cost-effective than repeatedly purchasing new hardware.
While Fortinet claims to offer a comprehensive network solution, it falls short in addressing computer application issues, particularly server security.
When considering Sophos XG, which we also use, the logging and reporting functionality is notably more efficient.
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.
The solution should have the ability to be up to date with the most recent threats.
This suggests a vulnerability that needs addressing to ensure administrators can update patches without losing access.
Business cannot stop just because of issues with support.
 

Setup Cost

Fortinet FortiGate offers high initial costs but competitive pricing, valued features, and flexible licensing compared to competitors.
OPNsense is a cost-effective, open-source firewall solution with free core features, ideal for budget-conscious enterprises.
Sophos XG offers competitive pricing, especially with bundles and discounts, though some users dislike recurring annual licenses.
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 offers cost savings as it is generally cheaper than the competition.
It is about 20% cheaper.
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.
I rate the pricing a ten out of ten.
Currently, it costs about four million shillings in Kenya.
The cost depends on the package you are in, such as full threat management or basic.
 

Valuable Features

Fortinet FortiGate offers robust, affordable security with user-friendly interface, centralized management, and efficient SD-WAN capabilities.
OPNsense is appreciated for its flexibility, user-friendly interface, robust security features, and extensive customization options through open-source access.
Sophos XG boasts intuitive interface, efficient filtering, VPN flexibility, centralized management, cloud support, and robust security features.
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 most valuable features include the basic firewall functionality and the GeoIP location services.
I can have a Wi-Fi VLAN and feel secure that the server network or the VM network that I have on a different VLAN are isolated, and they cannot talk to one another, which adds a great level of security.
It offers enterprise-grade features such as intrusion detection and prevention system, VPN support, traffic shaping, and web filtering, all without license cost.
I particularly like the visibility it provides into network traffic, allowing us to identify and address issues efficiently.
The firewall feature of Sophos XG has been the most effective for threat prevention.
Integration with endpoint security products ensures seamless traffic flow and rule enforcement, even when endpoints are not directly connected to the firewall.
 

Categories and Ranking

Fortinet FortiGate
Sponsored
Ranking in Firewalls
1st
Average Rating
8.4
Reviews Sentiment
6.9
Number of Reviews
574
Ranking in other categories
Secure Web Gateways (SWG) (2nd), Intrusion Detection and Prevention Software (IDPS) (1st), Software Defined WAN (SD-WAN) Solutions (1st), WAN Edge (1st), ZTNA (2nd), Unified Threat Management (UTM) (1st)
OPNsense
Ranking in Firewalls
3rd
Average Rating
8.4
Reviews Sentiment
6.9
Number of Reviews
43
Ranking in other categories
No ranking in other categories
Sophos XG
Ranking in Firewalls
4th
Average Rating
8.2
Reviews Sentiment
7.0
Number of Reviews
215
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of September 2025, in the Firewalls category, the mindshare of Fortinet FortiGate is 20.7%, up from 18.6% compared to the previous year. The mindshare of OPNsense is 11.1%, down from 15.9% compared to the previous year. The mindshare of Sophos XG is 9.9%, up from 9.5% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Firewalls Market Share Distribution
ProductMarket Share (%)
Fortinet FortiGate20.7%
OPNsense11.1%
Sophos XG9.9%
Other58.300000000000004%
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.
Moutaz Sheikh Alard - PeerSpot reviewer
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.
TarunPanchal - PeerSpot reviewer
Decades of expertise lead to seamless installations and robust security
I typically use the Sophos XG Firewall to enhance my cybersecurity by using all layers. The intrusion prevention system impacts my security posture effectively, as we have not faced any ransomware or cyber threats. I have more than 800 servers live from Sophos. The synchronized security feature has proven to be very beneficial, and I have not encountered any issues. Sophos XG Firewall has contributed to reducing overall costs because it helps save money. We purchased endpoint security for the first time last year, and even without endpoint security, it provides comprehensive security. Sophos XG uses AI effectively to enhance threat detection and response, securing from AI at the packet level.
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Top Industries

By visitors reading reviews
Computer Software Company
15%
Comms Service Provider
9%
Manufacturing Company
8%
Financial Services Firm
6%
Computer Software Company
16%
Comms Service Provider
16%
University
6%
Manufacturing Company
6%
Computer Software Company
15%
Comms Service Provider
9%
Manufacturing Company
7%
Financial Services Firm
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business350
Midsize Enterprise129
Large Enterprise187
By reviewers
Company SizeCount
Small Business30
Midsize Enterprise4
Large Enterprise8
By reviewers
Company SizeCount
Small Business140
Midsize Enterprise51
Large Enterprise36
 

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 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.
Which is better - Palo Alto Networks NG Firewalls or Sophos XG?
Palo Alto Networks NG Firewalls have both great features and performance. I like that Palo Alto has regular threat si...
What are the main differences in features between Sophos XG and FortiGate 80F?
Hi Arvind P , The Sophos XG firewall has a number of models right from XG86 to XG135w under the 1U Desktop Form Fact...
 

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
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.
Information Not Available
Find out what your peers are saying about OPNsense vs. Sophos XG and other solutions. Updated: September 2025.
867,497 professionals have used our research since 2012.