Menlo Secure vs OPNsense comparison

Menlo Security and OPNsense are both solutions in the Firewalls category. Menlo Security is ranked #52, while OPNsense is ranked #4 with an average rating of 8.1. Menlo Security holds a 0.1% mindshare in Firewalls, compared to OPNsense’s 11.2% 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: December 2025).

Buyer's Guide

Menlo Secure vs. OPNsense

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

Mindshare comparison

As of January 2026, in the Firewalls category, the mindshare of Fortinet FortiGate is 18.8%, down from 20.7% compared to the previous year. The mindshare of Menlo Secure is 0.1%, up from 0.0% compared to the previous year. The mindshare of OPNsense is 11.2%, down from 13.1% compared to the previous year. It is calculated based on PeerSpot user engagement data.

Firewalls Market Share Distribution
Product	Market Share (%)
Fortinet FortiGate	18.8%
OPNsense	11.2%
Menlo Secure	0.1%
Other	69.9%

Firewalls

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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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

"Offers good security and filtering."

"The initial setup is straightforward."

"I find Fortinet FortiGate to be quite stable, as I have never heard of any issues where they broke or malfunctioned; they are always working."

"I haven't configured or experienced any stability issues."

"Fortinet FortiGate has a very simple configuration, is easy to set up, and includes SD-WAN features at no additional cost."

"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."

"I have found most of the features to be good with excellent functionality."

"The most valuable features are the enterprise modeling and the simple interface."

More Fortinet FortiGate pros

"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."

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

"The fact that it is a cloud proxy solution is another feature we like. For example, if you acquire a new company, you can use it to protect that new company without the need to install anything physically on their networks."

"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."

"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."

"We have found pretty much all the features of the solution to be valuable."

"The solution has high availability."

"One of the most valuable features is the network checking. Additionally, the firewall and web filtering functionalities are highly useful."

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

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

"It's open source."

"We saved up to half a million Egyptian pounds, which is nearly $100,000 yearly on licensing or subscription using this kind of software, and the network attacks reduced by approximately 60% after using that, even without customizing the custom configuration yet."

"The solution is user-friendly and easy to configure."

More OPNsense pros

Cons

"We haven't tapped into most of the functionalities that Fortinet FortiGate offers because we're using it just for gateway security. One of the things that I would prefer is a more expansive use of their analyzer. They could do more work on FortiAnalyzer in terms of the data and the information coming from it."

"Price, of course, can always be more competitive or better."

"When we cluster the two Fortinet FortiGate boxes together we have some issues."

"The platform's interface could improve."

"The support is not good because I generally search for solutions online. When I open a case, they usually identify it as a bug they are working on."

"We have experienced a number of failures when trying to upgrade firmware and the process takes a long time. We only experienced this when doing major upgrades between versions."

"We would like to have the ability to disable some of the security functionalities."

"To some degree, it's almost a question as to why some of this stuff isn't simpler. For example, for an AP deployment, while it's integrated, the number of steps that you have to go through in order to get the AP up, seems like a lot."

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."

"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."

"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."

"The reporting part could be better."

"pfSense has better performance and quicker updates."

"The logging could improve in OPNsense."

"There is room for improvement in SSL inspection."

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

"OPNsense struggles to handle large volumes of voice traffic, indicating scalability issues in that specific use case."

"SD-WAN (software-defined wide area network) is integrated into some restricted service providers for OPNSense."

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

More OPNsense cons

Pricing and Cost Advice

"The platform offers a reasonable price point compared to its competitors."

"There is only a standard license cost to use the solution."

"If the price of the license in Fortinet FortiGate was less expensive it would be better."

"Each feature costs money, so it is important to study your needs."

"Its pricing is good. The advantages of Fortinet FortiGate over its competitors include good pricing and meeting our requirements at a lower cost."

"I rate the pricing an eight and a half on a scale of one to ten, where one is low, and ten is high."

"I rate FortiGate Next Generation Firewall a five out of ten for pricing."

"They need to be competitive with other solutions."

More Fortinet FortiGate pricing and cost advice

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

"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 open source and free."

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

"It's not expensive."

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

"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."

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

"It's a free solution."

"The price of OPNsense is good."

More OPNsense pricing and cost advice

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Top Industries

By visitors reading reviews

Computer Software Company

12%

Comms Service Provider

Manufacturing Company

Financial Services Firm

Manufacturing Company

14%

Retailer

12%

Computer Software Company

12%

Financial Services Firm

Comms Service Provider

17%

Computer Software Company

11%

Manufacturing Company

University

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

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

No data available

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

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 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....

See all answers

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 ...

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...

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

Prisma Access Browser vs Menlo Secure

Compared 32% of the time

Prisma Access by Palo Alto Networks vs Menlo Secure

Compared 11% of the time

Cisco Umbrella vs Menlo Secure

Compared 10% of the time

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

Compared 9% of the time

Cloudflare One vs Menlo Secure

Compared 6% of the time

More Menlo Secure 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

Product Reports

Buyer's Guide

Fortinet FortiGate

January 2026

Download Fortinet FortiGate product report

Buyer's Guide

Menlo Secure

January 2026

Download Menlo Secure product report

Buyer's Guide

OPNsense

January 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

December 2025

Free Report: Menlo Secure vs. OPNsense

Find out what your peers are saying about Menlo Secure vs. OPNsense and other solutions. Updated: December 2025.

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