Menlo Secure vs OPNsense comparison

Menlo Security and OPNsense are both solutions in the Firewalls category. Menlo Security is ranked #51, while OPNsense is ranked #5 with an average rating of 8.1. Menlo Security holds a 0.3% mindshare in Firewalls, compared to OPNsense’s 8.5% mindshare. Additionally, 100% of Menlo Security users are willing to recommend the solution, compared to 95% of OPNsense users who would recommend it.

Comparison Buyer's Guide

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Executive SummaryUpdated on Sep 16, 2024

Menlo Secure and OPNsense are two competing products in the cybersecurity market. OPNsense is seen as a superior product in terms of features and overall user satisfaction, making it worth the higher price point.

Features: Menlo Secure's advanced threat protection, seamless integration, and solid customer support. OPNsense has a rich feature set, including extensive plugin support, robust firewall capabilities, and comprehensive tools for flexibility.

Room for Improvement: Menlo Secure users highlight the need for faster updates, better documentation, and improved threat intelligence. OPNsense users suggest a more intuitive setup process, enhanced customer support, and streamlined user interface improvements.

Ease of Deployment and Customer Service: Menlo Secure is noted for its straightforward deployment and responsive customer service. OPNsense presents a steeper learning curve in deployment but benefits from strong community support.

Pricing and ROI: Menlo Secure users find the pricing reasonable with satisfactory ROI. OPNsense users highlight cost-effectiveness and excellent long-term value.

To learn more, read our detailed Menlo Secure vs. OPNsense Report (Updated: June 2026).

Buyer's Guide

Menlo Secure vs. OPNsense

June 2026

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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

Mindshare comparison

As of June 2026, in the Firewalls category, the mindshare of Fortinet FortiGate is 15.1%, down from 21.7% compared to the previous year. The mindshare of Menlo Secure is 0.3%, up from 0.1% compared to the previous year. The mindshare of OPNsense is 8.5%, down from 10.7% compared to the previous year. It is calculated based on PeerSpot user engagement data.

Firewalls Mindshare Distribution
Product	Mindshare (%)
Fortinet FortiGate	15.1%
OPNsense	8.5%
Menlo Secure	0.3%
Other	76.1%

Firewalls

Featured Reviews

Joseph Koomson

IP Network Security Specialist at MTN Ghana

Process-Level CPU Visibility: Introduce detailed CPU-usage metrics per subsystem (e.g., IPS engine, logging) so administrators can quickly identify and address performance spikes.

Analytics with FortiAnalyzer. Being able to pull in logs not just from our FortiGates but from all our other firewalls and then get them in one view has been a game changer. Whether I’m building an executive dashboard or doing a deep dive forensics session, I get everything I need without navigating consoles.Straightforward Application Control. FortiGate spots and blocks unwanted apps (eq. like BitTorrent or streaming services) with accuracy. Segmentation with VDOMs. We’ve carved our data center into four logical ‘mini-firewalls’ enterprise, core, billing, and WAF—all on one box. Each has its own rules and logs, and any traffic between them still gets inspected. It’s like having multiple appliances without the extra hardware. Always-Up-to-Date Threat Feeds. Daily signature updates and AI-driven threat sensing mean we’re blocking the latest vulnerabilities almost as soon as they’re announced.

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reviewer2701794

Head Of Bluechip Enterprise at a manufacturing company with 51-200 employees

Provides strong protection and multiple use cases but struggles with market recognition

There aren't specific areas for improvement; however, they're not as well known as the big vendors such as Palo Alto. Menlo Secure is a smaller company with limited resources and funding, which makes it challenging to compete with larger companies such as Palo and Cisco. What can be improved is market awareness and adoption of the technology. When selling it in the channel, regardless of how good the technology might be, success depends more on market adoption and awareness.

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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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Quotes from Members

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

Pros

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

"Some of the valuable features are the firewall, IPS, web filter, and gateway capabilities. Additionally, it is easy to use and flexible."

"The most valuable feature of Fortinet FortiGate is load balancing, as it can provide central management and VPN access and has enhanced our security environment, with a management UI that is more user-friendly than Cisco's solution."

"The wireless control is helpful."

"This solution has a unique range of features that are not available with any other product."

"The most valuable features of Fortinet FortiGate that I found are its next-generation firewall capabilities with stateful inspection and antivirus, along with features such as a reverse proxy that are missed by some other firewall products such as Palo Alto or Check Point."

"We are happy to use this product."

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

More Fortinet FortiGate pros

"We are not aware of a single compromise from the web since implementing the solution."

"We have definitely seen ROI, as we save a ton of money and time because the numerous hits that we were receiving from our security tools prior to implementing them had to all be chased down, dispositioned, and endpoints had to be reimaged."

"This security technology addresses risk and enables people to conduct business without that risk, which is where the ROI is realized."

"It has reduced security events to follow up on. While it is not 100%, there has been probably a 90% or more reduction. We were getting hit left, right, and center constantly from people browsing the Internet and hitting bad websites. It was not just bad websites that were stood up to be malicious, but good sites that were compromised."

"The solution is invisible to our end users, so it doesn't have any impact on their work or performance."

"Accessing the internet with a proxy from anywhere is the most valuable feature. It ensures that users are only able to browse legitimate websites. If they happen to go to a legitimate website with a malicious payload, the isolation feature will take care of that."

"For us, the primary goal is protection on the web, and that's extremely important. We're not using any of the other services at this time. The web part is key to the success of the organization. It gives us the ability to protect. It can isolate. It opens the session in an isolated format so that the code isn't running locally. It is running over in the Menlo environment, not in ours. It is not running on the local computer, whereas if you were to go to a normal website, it would run Java or something else on the local machine and potentially execute the malicious code locally. So, it does give us that level of protection."

"Either you have access to something or don't have access to it, and if you do, we can ensure, 100 percent of the time, that there is nothing malicious that is going to impact our system in any way."

More Menlo Secure pros

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

"I find everything valuable in OPNsense; the configuration and reporting aspects are what we require, reporting on user access and data consumed is fascinating in OPNsense, and the configuration offers a clear idea of everything that I have configured in DHCP."

"OPNsense impacts my projects and home network positively because its cost-effectiveness is perfect for lab and enterprise setup without expensive licensing, and the flexibility, easy VLAN and DMZ configuration supports different zones such as web servers, mail servers, and log servers."

"We can open a new VPN connection easily. It's much easier than with Fortinet in our experience."

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

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

"The most valuable feature is the Dual WAN in OPNSense, which offers advanced capabilities."

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

More OPNsense pros

Cons

"The main thing they have to improve in Fortinet FortiGate is the technical support; the rest of the features are good enough. We can handle them, but sometimes you really need support, and in that case, we are not getting it at the proper time."

"Its load balancing feature could be easy to configure."

"There should be some open-source training or free training for decision makers, or some webinars should be available. These would help understand the new product line and the existing product line features."

"The people we are working with are not able to configure MFA. They are having some technical issues. Fortinet needs to ensure that its partners are well-trained."

"The main aspect of FortiGate that could be improved is load balancing. Our management team does not want to buy another appliance for only load balancing."

"The solution could improve the configuration, there are times the configuration is missing."

"It could use more templates for third-party site-to-site VPN setups other than FortiGate and Cisco."

"I have an issue with NAT only, in that I can't allow traffic from outside to inside using a NAT pool."

More Fortinet FortiGate cons

"In the best of all worlds, we wouldn't have to make any exceptions. However, that is a big ask because a lot of that depends on how websites are constructed. For example, there are some very complex, application-oriented sites that we end up making exceptions for. It is really not that big an issue for us to make the exceptions. We feel like we are doing that without a huge impact on our security posture, but we do have to make some exceptions for complex sites, e.g., mostly SaaS-type sites and applications."

"We are now transitioning to another solution. The main reason for that is that managing all of the exceptions and troubleshooting all of the issues our users have had connecting to the internet has become too significant in terms of workload, compared to what we hope we will have with another solution."

"Menlo Secure is a smaller company with limited resources and funding, which makes it challenging to compete with larger companies such as Palo and Cisco."

"The user monitoring could still be improved."

"Currently, I don't have a good way to see which of my rules are being used in the access control lists."

"Currently, I don't have a good way to see which of my rules are being used in the access control lists. I have numerous entries, but are they all still needed? A report that would show me my list of who is allowed and whether we're actually using it would be useful because I can then go clean up my list. It would be easier to manage. We would eliminate the vulnerability of unused services."

"The interface isn't so friendly user. But we have some technicians here who are quite confident with this tool. OPNSense could maybe add sets of rules so it's simpler to manage different groups with particular needs."

"The solution can't compete with next-generation firewalls."

"There are some add-ons that need enhancements to make management easier for users, especially the reporting features. Some reports don't show the level of detail I'm looking for, and I've had trouble installing certain add-ons, especially for Internet bandwidth shaping within my company."

"The solution would not be suitable for anything large-scale."

"The scalability needs improvement."

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

"Pricing in my opinion is just too expensive. It makes no sense. It moves in the direction of a monopoly."

"You will need additional training before you can actually start to use it."

More OPNsense cons

Pricing and Cost Advice

"We have the full version of Fortinet FortiGate and we are on a three-year contract with a commitment of five years."

"Setup costs and pricing depends on many variables, but it's mostly affordable."

"Fortinet's pricing is more straightforward than other solutions. If Fortinet doesn't stick out when you're searching for a solution, you are a glutton for punishment. You only need to know two things when purchasing a Fortinet solution: your total bandwidth and bandwidth at the site. You need to estimate the future bandwidth with other solutions if your customer plans to upgrade."

"For our organization, the licensing costs are approximately $7,000 per year."

"We are on an annual license to use Fortinet FortiGate."

"The license is yearly. We pay for the top end. It's called 360."

"FortiGate's pricing falls within the mid-range when compared to other leading firewall solutions."

"Fortinet FortiGate IPS' licensing is quite simple to understand."

More Fortinet FortiGate pricing and cost advice

"We save a ton of money and time. Previously, the numerous hits that we were receiving from our security tools, prior to implementing them, had to all be chased down, dispositioned, and endpoints had to be reimaged. It was just a ton of effort to do all that. That is where the savings from time and money come in."

"The solution is expensive. It's more expensive than the solution I previously used. Compared with the other cloud-based solutions, it's very competitive."

"It is appropriately priced for what they're doing for us. Considering the protection provided, I feel their pricing is spot-on."

"It costs about $1000."

"The price of OPNsense is good."

"It's not expensive."

"It is open source and free."

"As an appliance, it's in the medium price range."

"I would rate the pricing three out of ten."

"Its pricing is unbeatable in comparison to other firewalls. You can have a small instance that could be €80 a month with the hardware underneath. Azure Firewall and FortiGate are out of the question at this price. If you are on a public cloud, you need the underlying infrastructure. Other than that, there is no additional cost. If you have it on-prem, you have to buy the server or the appliance. The hardware cost is replaced with the infrastructure cost in the cloud. You also have costs for the public IPs and underlying VMs, but that's not related to OPNsense. It would be the same for a FortiGate deployment on Azure. You need a FortiGate license, and you need the underlying infrastructure that scales up depending on your needs."

"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."

More OPNsense pricing and cost advice

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Top Industries

By visitors reading reviews

Comms Service Provider

10%

Computer Software Company

Manufacturing Company

Financial Services Firm

Manufacturing Company

14%

Construction Company

Retailer

Financial Services Firm

Comms Service Provider

17%

Computer Software Company

Manufacturing Company

Financial Services Firm

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

By reviewers
Company Size	Count
Small Business	369
Midsize Enterprise	139
Large Enterprise	195

No data available

By reviewers
Company Size	Count
Small Business	32
Midsize Enterprise	6
Large Enterprise	8

Questions from the Community

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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 needs improvement with Menlo Security Secure Web Gateway?

There aren't specific areas for improvement; however, they're not as well known as the big vendors such as Palo Alto....

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What is your primary use case for Menlo Security Secure Web Gateway?

People are mainly using it for zero trust web access. Menlo Secure is built from the ground up to provide zero basic ...

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What advice do you have for others considering Menlo Security Secure Web Gateway?

Secure file sharing and data protection is not exactly what Menlo Secure is designed to do. While it can handle some ...

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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...

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What is your experience regarding pricing and costs for OPNsense?

Setup cost is almost zero as one can simulate the whole environment using open source version. Pricing seems fair eno...

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What needs improvement with OPNsense?

When I talk about VPN, I am not completely satisfied with the VPN functions of OPNsense. What I have received so far ...

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Comparisons

Sophos Firewall vs Fortinet FortiGate

Compared 16% of the time

Cisco Secure Firewall vs Fortinet FortiGate

Compared 13% of the time

Palo Alto Networks NG Firewalls vs Fortinet FortiGate

Compared 5% of the time

Netgate pfSense vs Fortinet FortiGate

Compared 3% of the time

Cisco Meraki MX vs Fortinet FortiGate

Compared 2% of the time

More Fortinet FortiGate Competitors

Prisma Access Browser vs Menlo Secure

Compared 18% of the time

Check Point Harmony SASE (formerly Perimeter 81) vs Menlo Secure

Compared 13% of the time

Netskope Next Gen Secure Web Gateway vs Menlo Secure

Compared 10% of the time

Cloudflare One vs Menlo Secure

Compared 9% of the time

Silo by Authentic8 vs Menlo Secure

Compared 7% of the time

More Menlo Secure Competitors

Netgate pfSense vs OPNsense

Compared 52% of the time

IPFire vs OPNsense

Compared 6% of the time

Sophos Firewall vs OPNsense

Compared 5% of the time

Sophos UTM vs OPNsense

Compared 3% of the time

Cisco Secure Firewall vs OPNsense

Compared 3% of the time

More OPNsense Competitors

Product Reports

Buyer's Guide

Fortinet FortiGate

June 2026

Download Fortinet FortiGate product report

Buyer's Guide

Menlo Secure

June 2026

Download Menlo Secure product report

Buyer's Guide

OPNsense

June 2026

Download OPNsense product report

Also Known As

Fortinet FortiGate Next-Generation Firewall

Menlo Security Web Security, Menlo Web Security

No data available

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

Menlo Security Secure Application Access

Menlo Security Secure Application Access makes zero trust access easy, giving users secure connectivity to private applications, including web and legacy applications. At the core of Secure Application Access is the Menlo Secure Cloud Browser, which fetches, secures and delivers the content for users.

In addition to providing simple-to-deploy, clientless ZTA, Secure Application Access and the Menlo Secure Cloud Browser protect applications from attacks such as session hijacking, cookie manipulation, and other tactics that employ protocol manipulation.

Secure Application Access protects applications from Internet threats and provides granular controls for added protection of the application and associated data. These security controls include Read-only/Read-write, Upload/download, Copy/paste, AV scanning, Sandboxing, and Data Loss Prevention.

Last Mile Data Protection

Menlo Last-Mile Data Protection identifies and prevents sensitive data from leaving your company by meticulously inspecting all file uploads and user input across browsing sessions. Leveraging the Secure Cloud Browser, users are protected from the internet and you can protect your organization from data loss with comprehensive traffic monitoring and controls. This approach addresses the growing concerns surrounding data leakage in the age of AI tools like ChatGPT.

By identifying sensitive data through file types, regular expressions, or predefined libraries, Menlo Last-Mile Data Protection empowers security teams to regulate data input into AI platforms and prevent unauthorized uploads. This capability provides crucial protection for intellectual property, PII, and other confidential information.

The solution leverages the Menlo Cloud Security Platform's visibility and control over traffic to reliably detect and prevent data leaks originating from both browser submission forms and non-browser traffic. With the ability to inspect encrypted web traffic, Menlo Last-Mile Data Protection enforces DLP policies consistently across all users and devices, ensuring comprehensive data protection.

Menlo Security

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

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.

Buyer's Guide

Menlo Secure vs. OPNsense

June 2026

Free Report: Menlo Secure vs. OPNsense

Find out what your peers are saying about Menlo Secure vs. OPNsense and other solutions. Updated: June 2026.

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