Menlo Secure vs OPNsense comparison

Menlo Security and OPNsense are both solutions in the Firewalls category. Menlo Security is ranked #54, while OPNsense is ranked #3 with an average rating of 7.9. Menlo Security holds a 0.1% mindshare in Firewalls, compared to OPNsense’s 11.0% 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: September 2025).

Buyer's Guide

Menlo Secure vs. OPNsense

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

Mindshare comparison

As of October 2025, in the Firewalls category, the mindshare of Fortinet FortiGate is 20.4%, up from 19.1% 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 11.0%, down from 15.1% compared to the previous year. It is calculated based on PeerSpot user engagement data.

Firewalls Market Share Distribution
Product	Market Share (%)
Fortinet FortiGate	20.4%
OPNsense	11.0%
Menlo Secure	0.1%
Other	68.5%

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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Olivier DALOY

Group Information Systems Security Director - CISO at Faurecia

Secures users wherever they are and enable us to inspect SSL traffic, but we encountered too many issues

The solution should have no impact but it does have a bit of impact on end-users. For example, we encountered some issues in the downloads that took longer than they did without using Menlo. That is clearly not transparent for users. We expected not to have any latency when downloading anything from the internet with Menlo compared to without Menlo. 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. In other words, we hope to get the same level of protection, while reducing the number of visible bugs, issues, latencies, impacts on performance, et cetera, that we have today with Menlo. We already solved most of them, but we still have too many such instances of issues with Menlo, even though it is protecting us for sure. The weak point of the solution is that it has consumed far too much of my team's time, taking them away from operations and projects and design. It took far too much time to implement it and get rid of all of the live issues that we encountered when our users started using the solution. The good point is that I'm sure it is protecting us and it's probably protecting us more than any other solution, which is something I appreciate a lot as a CISO. But on the other hand, the number of issues reported by the users, and the amount of time that has been necessary for either my team or the infrastructure team to spend diagnosing, troubleshooting, and fixing the issues that we had with the solution was too much. And that doesn't include the need to still use our previous solution, Blue Coat, that we have kept active so that whatever is not compatible or doesn't work with Menlo, can be handled by that other solution. It is far too demanding in terms of effort and workload and even cost, at the end of the day. That is why we decided to transition to another solution. If we had known in the beginning that we would not be able to get rid of Blue Coat, we probably would not have chosen Menlo because we were planning to replace Blue Coat with something that was at least able to do the same and more. We discovered that it was able to do more but it was not able to replace it, which is an issue. It is not only a matter of cost but is also a matter of not being able to reduce the number of partners that you have to deal with. In addition, they could enhance the ability to troubleshoot. Whenever a connection going through Menlo fails for any reason, being able to troubleshoot what the configuration of Menlo should be to allow it through would help, as would knowing what level of additional risk we would be taking with that configuration.

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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

"The web filtering facility and application control are the most valuable features from the point of view of our clients. The VPN feature is also quite popular amongst our clients. Two-factor authentication is one of the good features in Fortinet. These features are important for the current scenario of security. Security has become a necessity nowadays. With cyber-attacks becoming more common, protecting an organization's data is one of the major tasks. It is also very stable and scalable, and it is very straightforward to configure. Their technical support is also good."

"The most valuable features of Fortinet FortiGate are the rules and quality of service."

"I would recommend Fortinet FortiGate IPS as it is a core component of cybersecurity for our company."

"The signature database and zero-day detection are Fortinet FortiGate's most valuable features."

"The most valuable features of Fortinet FortiGate are it is one of the most mature firewalls in the UTM bundle."

"The ease of use, concise reports, and threat identification are very user-friendly and valuable."

"I find that Fortinet FortiGate is pretty easy to use and integrated, offering many features in one box at a decent price compared to other enterprise vendors."

"Valuable features include the Web Application Firewall, and it even has DLP (data leak prevention)."

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."

"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."

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

"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."

"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."

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

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

"The IDS and IPS features are valuable. From the usability perspective, there is a lot of good documentation. As IT professionals, we found it very easy to configure the firewall. It was easy to configure and use."

"OPNsense is highly stable."

"OPNsense is easy to use and open source."

"The system in general is quite flexible."

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

"It is a very good solution. I like the dashboard. I can see what is going on and manage it as I like it."

More OPNsense pros

Cons

"They could do more work on FortiAnalyzer in terms of the data and the information coming from it."

"The search tool needs improvement. It's very difficult to search for policies right now."

"There are just some services that aren't available. For example, the Ethernet or point-to-point protocols. They could add these services to their product offering - especially services for ISPs."

"In the past six months, they took quite a long time to respond to the support tickets. I don't know if they are overwhelmed with too much activity, but for the last six months, the support has not been very good."

"They could improve the response time and quality of support."

"At the moment, if you don't integrate any third-party solution with a simple Fortinet FortiGate box, the box would not function as expected for superb protection."

"From my experience, I see that the datasheets of the Fortinet FortiGate portfolio need to be more accurate because correct sizing is essential. The datasheets should provide clear information when deploying features."

"It would be better if they had a dashboard where we could see what attacks were happening. It would be good to see who's trying to get into our network."

More Fortinet FortiGate cons

"The user monitoring could still be improved."

"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."

"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."

"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."

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

"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 user interface could be improved, and the DNS section should be more intuitive."

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

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

"pfSense has better performance and quicker updates."

"In terms of improvement, the performance could be enhanced."

"On the customer-side, because I'm a small business, I need a cheaper or free solution option."

More OPNsense cons

Pricing and Cost Advice

"On a scale of one being cheap and ten being expensive, I rate the tool's price as an eight."

"The solution's price is average."

"I would rate the pricing a five out of ten"

"We are currently evaluating a Palo Alto solution, and the pricing could be a reason for going for Palo Alto."

"I rate the product's pricing a seven out of ten. The additional cost depends on the extra feature requirements."

"It is a good product from a price perspective versus functionality."

"If you compare Fortinet FortiGate with Sophos and other firewall products available in the market, this solution is affordable."

"When you look at these end security systems and firewalls, these firewalls even five years ago were $50,000 or perhaps $25,000 to implement in some types of customer sites. Now we're talking about tools that are $1,000. In this case, it might have been $500 or something like that."

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."

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

"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."

"We are using the paid version."

"It costs about $1000."

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

"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'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."

"It's a free solution."

"It is not an expensive product. Basically, I deployed it because it was the fastest solution to satisfy our needs in open source."

More OPNsense pricing and cost advice

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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%

Manufacturing Company

14%

Financial Services Firm

10%

Retailer

Computer Software Company

16%

Comms Service Provider

16%

University

Educational Organization

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

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

No data available

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

Questions from the Community

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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...

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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

Prisma Access by Palo Alto Networks vs Menlo Secure

Compared 17% of the time

Prisma Access Browser vs Menlo Secure

Compared 17% of the time

Cisco Umbrella vs Menlo Secure

Compared 17% of the time

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

Compared 12% of the time

Silo by Authentic8 vs Menlo Secure

Compared 6% of the time

More Menlo Secure Competitors

Netgate pfSense vs OPNsense

Compared 38% of the time

IPFire vs OPNsense

Compared 14% 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

Product Reports

Buyer's Guide

Fortinet FortiGate

October 2025

Download Fortinet FortiGate product report

Buyer's Guide

Menlo Secure

September 2025

Download Menlo Secure product report

Buyer's Guide

OPNsense

September 2025

Download OPNsense product report

Also Known As

No data available

Menlo Security Web Security, Menlo Web Security

No data available

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

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

September 2025

Free Report: Menlo Secure vs. OPNsense

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

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