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Menlo Secure vs OPNsense comparison

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Comparison Buyer's Guide

Executive SummaryUpdated on Sep 16, 2024

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

Menlo Secure
Ranking in Firewalls
54th
Average Rating
9.2
Reviews Sentiment
6.7
Number of Reviews
5
Ranking in other categories
Secure Web Gateways (SWG) (25th), ZTNA (27th), Cloud Security Remediation (6th)
OPNsense
Ranking in Firewalls
7th
Average Rating
8.2
Reviews Sentiment
6.6
Number of Reviews
47
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of October 2026, in the Firewalls category, the mindshare of Menlo Secure is 0.4%, up from 0.1% compared to the previous year. The mindshare of OPNsense is 7.2%, down from 11.1% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Firewalls Mindshare Distribution
ProductMindshare (%)
OPNsense7.2%
Menlo Secure0.4%
Other92.4%
Firewalls
 

Featured Reviews

reviewer2701794 - PeerSpot reviewer
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.
PM
IT Manager at a comms service provider with 201-500 employees
Open-source firewall has provided affordable real-time protection and secure remote access
In my opinion, OPNsense could improve by incorporating either an open side of wireless management or a way that you can also manage your interconnected devices. You could easily have SNMP, Simple Network Management Protocol, incorporated in it so that you can easily manage the devices and easily get the information about the devices that you are managing. Additionally, the inclusion of Pi-hole would allow you to create an ad-free network instead of adding it on a separate device. I would prefer that incorporated into OPNsense, or if it is there, I would appreciate guidance on how to use it.

Quotes from Members

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

Pros

"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."
"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."
"This security technology addresses risk and enables people to conduct business without that risk, which is where the ROI is realized."
"We are not aware of a single compromise from the web since implementing the solution."
"The solution is invisible to our end users, so it doesn't have any impact on their work or performance."
"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."
"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."
"OPNsense is easy to use and open source."
"It is a very good solution. I like the dashboard. I can see what is going on and manage it as I like it."
"I moved to OPNsense because it's more secure and more reliable."
"The most valuable feature of OPNsense is compatibility."
"Based on my experience, the main benefits OPNsense provides for me are due to the limitation in getting financials to implement the most marketable solutions available in the market, which pushed me to find other open-source-related or cheaper solutions, and that is how I came upon OPNsense and pfSense, but OPNsense was the choice in this decision, providing a simple but also effective solution on a low budget."
"What I like the most about OPNsense is that it offers an easy-to-use dashboard for device management and control."
"For the initial setup of OPNsense, I find that it is very simple."
"The technical support is very good."
 

Cons

"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."
"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."
"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."
"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."
"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."
"The solution could be more secure."
"You will need additional training before you can actually start to use it."
"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 support for OPNsense is good because we have documents available on the internet. The support could improve a little."
"In our experience, OPNsense showed me some problems when using it in different environments. The problem is integration with a virtual server."
"We did not like the fact that you have to configure everything with the graphic user interface. We have used other firewalls, such as FortiGate, that you can configure via code. OPNsense is not easy to integrate. When you are deploying via GitHub or another source repository, this is not possible. That's one thing we didn't like much."
"It is stable, but for us, it is not yet so reliable."
"The feature that I would like to see in the next release, I think, would be to improve the VPN (Virtual Private Network) selection."
 

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."
"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 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 free."
"We are using the paid version."
"It is open source and free."
"OPNsense is open source software so at this time it is free for us to use."
"I would rate the pricing a nine out of ten, especially considering the availability of a free community edition."
"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."
"The solution is not expensive."
"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."
report
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Top Industries

By visitors reading reviews
Manufacturing Company
14%
Construction Company
11%
Outsourcing Company
9%
Comms Service Provider
9%
Comms Service Provider
18%
Manufacturing Company
8%
Computer Software Company
8%
Outsourcing Company
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
By reviewers
Company SizeCount
Small Business32
Midsize Enterprise6
Large Enterprise8
 

Questions from the Community

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. Menlo Secure is a smaller company with limited resources and funding, which mak...
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 access, and by doing it that way, it has multiple use cases. For example, it man...
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 of these functions, people typically choose another technology for those specifi...
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 client, Open VPN and client, and PPTP client. Both also have intrusion detection a...
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 enough. Open source license allows a beginner to have a complete firewall solution ...
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 is that sometimes the VPN route caches for some time and sometimes I want to cha...
 

Also Known As

Menlo Security Web Security, Menlo Web Security
No data available
 

Overview

 

Sample Customers

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.
Find out what your peers are saying about Menlo Secure vs. OPNsense and other solutions. Updated: September 2026.
915,341 professionals have used our research since 2012.