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Hillstone T-Series 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

Fortinet FortiGate
Sponsored
Ranking in Firewalls
2nd
Average Rating
8.4
Reviews Sentiment
7.2
Number of Reviews
364
Ranking in other categories
Software Defined WAN (SD-WAN) Solutions (1st), WAN Edge (1st)
Hillstone T-Series
Ranking in Firewalls
40th
Average Rating
7.4
Number of Reviews
3
Ranking in other categories
No ranking in other categories
OPNsense
Ranking in Firewalls
3rd
Average Rating
8.4
Reviews Sentiment
6.7
Number of Reviews
40
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of June 2025, in the Firewalls category, the mindshare of Fortinet FortiGate is 21.4%, up from 17.8% compared to the previous year. The mindshare of Hillstone T-Series is 0.1%, up from 0.1% compared to the previous year. The mindshare of OPNsense is 11.3%, down from 17.5% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Firewalls
 

Featured Reviews

Vasu Gala - PeerSpot reviewer
A stable solution with an intuitive interface and quick customer service
I have been working with Fortinet FortiGate, WatchGuard, Sophos, and SonicWall. I'm not as comfortable with SonicWall because of their UI and limitations. I prefer Fortinet above all other options. When it comes to configuration, I am confident in my ability to handle various tasks, including creating policies such as firewall rules, web policies, and application policies. Additionally, I can configure VPNs and implement load balancing, among other tasks. Overall, I feel much more comfortable working with Fortinet. Fortinet has made significant improvements by integrating AI with firewalls for threat analysis and prevention. In the past 2-3 years, they have launched FortiSASE and SIEM, and they also provide SOC services. Both Palo Alto and Fortinet FortiGate are excellent. While Fortinet FortiGate comes at higher prices, the functionality and support justify the cost. They promptly resolve firmware issues and inform all support providers about configuration changes.
TahirMahmood - PeerSpot reviewer
Is stable and has a user-friendly dashboard and a good interface
We installed Hillstone T-Series after a ransomware attack. The dashboard and user interface are very good We cannot secure a specific IP class with this firewall. Another loophole with Hillstone T-Series is that when we connect through WiFi and turn our hot spot on, all who connect through the…
Akram Zaki Hussein - PeerSpot reviewer
Robust network security and management offering a user-friendly interface, open-source flexibility, and cost-effectiveness, with challenges regarding initial setup and the absence of official support
The interface is user-friendly, but there's room for improvement in terms of intuitiveness. The bundle management aspect requires additional attention to make it more intuitive, especially for inspecting high-level traffic. This is crucial, especially for larger companies where the existing features might not be the most optimal choice, given limitations like printer constraints. For high availability, it's crucial to have a method in place where a designated component oversees the entire process. Given that OPNsense plays a pivotal role as a firewall, safeguarding against various threats, having a reliable backup ensures uninterrupted protection even if unforeseen events impact the primary virtual machine. It would be beneficial if OPNsense supported additional virtualization platforms like Hyper-V from Microsoft and VMware, similar to how Kaspersky has integrated them.

Quotes from Members

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

Pros

"The reporting you receive out of this appliance is excellent. You will not need an external management system."
"Security solution with a straightforward and quick setup. It's a stable and scalable product."
"The management console is pretty simple, so anyone who understands networking can initially deploy the solution."
"Some of the key features of the solution is that it has good reporting, you can receive many details from the connection, for example, clients and website information."
"It's very fast and easy to configure."
"Its user interface is good, and it is always working fine."
"LinkGreat firewall capabilities"
"It is simple to manage, and there are a lot of functionalities in the same box."
"We installed Hillstone T-Series after a ransomware attack. The dashboard and user interface are very good."
"The only firewall able to monitor traffic from a CCTV network. Can detect unauthorized devices plugged into the network, which standard firewalls can't do."
"It has been stable so far."
"The most valuable features are reporting, the Sensei plugin, and firewall capabilities."
"The feature I find most valuable, is that the program helped me to realize all the requested functionality that was needed."
"OPNsense is easy to use and open source."
"We have been operating here in our lab for several months, and everything appears to be extremely stable."
"OPNsense could improve by making the configuration more web-based rather than shell or command-line-based."
"The tool's integration is more like a button press."
"OPNsense is highly stable."
"One of the most valuable features is the network checking. Additionally, the firewall and web filtering functionalities are highly useful."
 

Cons

"In my opinion, Fortinet FortiGate could be improved by making the appliance smaller than what we have here, as it is pretty big."
"It should have a better pricing plan. It is too expensive. It should also have a more granular view of the attack. I don't have FortiAnalyzer, and it is difficult for me to have a complete view when there is an attack on my server."
"The AI with Fortinet FortiGate is not very well integrated on their devices, and their cloud infrastructure is not as good as Cisco's."
"The license renewal process, annual renewal price, and the web application firewall features should be improved."
"The cloud features can be improved."
"The debugging and troubleshooting has room for improvement."
"I haven't had a single issue since using Fortinet."
"The firmware needs improvement because there are bugs when a new release comes through. Sometimes, the configuration changes, and it's a bit harder to see where the fail is. The first time that you have the firmware, it tends to have some issues, and it's better to wait a bit to update the equipment."
"They have a very good technical support team, but I think there are some communication issues due to language differences."
"Licensing is not cheap."
"Another loophole with Hillstone T-Series is that when we connect through WiFi and turn our hot spot on, all who connect through the hotspot get all the functions, and the security does not work."
"There are a few weaknesses. For example, there is a lack of some features that I have in certain commercial products."
"The support for OPNsense is good because we have documents available on the internet. The support could improve a little."
"When using the solution at the beginning was difficult. There was a steep learning curve."
"The IPS solution could be more reliable."
"The ability to set the VPN IP address would be a welcome addition."
"The logging could improve in OPNsense."
"The scalability needs improvement."
"The reporting part could be better."
 

Pricing and Cost Advice

"It has a competitive price."
"Before choosing a piece of equipment you have to take into account the cost-benefit offered by each one. Sometimes it is not worth paying a very cheap price to have a minimum level of security."
"The support subscription for the solution is annual. You are paying for support and there are two levels of support, professional and advanced."
"The price of FortiGate is good."
"Easy to understand licensing requirements."
"The main reason we chose Fortinet FortiGate was that the price was better than the competition."
"It's very affordable."
"The pricing is perfect."
"On a scale from one to ten, with one being low and ten being high price, I would rate the price of Hillstone T-Series at three. There are no additional costs other than renewal costs."
"We got a much cheaper price than that provided by Fortinet right now."
"It is not an expensive product. Basically, I deployed it because it was the fastest solution to satisfy our needs in open source."
"OPNsense is an open-source solution and it is free to use."
"I would rate the pricing three out of ten."
"It's a free solution."
"As an appliance, it's in the medium price range."
"It costs about $1000."
"The price of OPNsense is good."
"I've used the free version. My computer with two network cards at home allows me to try as many different software options as I want. I did pay for the license, but it was for the Zenarmor license, which is the packet inspection tool. They use AI for packet inspection, which integrates with OPNsense and pfSense."
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Top Industries

By visitors reading reviews
Computer Software Company
15%
Educational Organization
14%
Comms Service Provider
8%
Manufacturing Company
6%
Financial Services Firm
21%
Computer Software Company
18%
Real Estate/Law Firm
14%
Manufacturing Company
7%
Computer Software Company
16%
Comms Service Provider
14%
Government
7%
Educational Organization
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
 

Questions from the Community

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From my experience regarding both the Sophos and FortiGate firewalls, I personally would rather use FortiGate. I know...
What are the biggest technical differences between Sophos UTM and Fortinet FortiGate?
As a solution, Sophos UTM offers a lot of functionality, it scales well, and the stability and performance are quite ...
Ask a question
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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...
What do you like most about OPNsense?
What I like the most about OPNsense is that it offers an easy-to-use dashboard for device management and control.
What is your experience regarding pricing and costs for OPNsense?
The pricing is competitive when compared to vendors like Palo and FortiNet.
 

Also Known As

FortiGate 60b, FortiGate 60c, FortiGate 80c, FortiGate 50b, FortiGate 200b, FortiGate 110c, FortiGate, Fortinet Firewall
Hillstone T-Series Intelligent Next-Generation Firewalls, Hillstone iNGFW
No data available
 

Overview

 

Sample Customers

Amazon Web Services, Microsoft, IBM, Cisco, Dell, HP, Oracle, Verizon, AT&T, T-Mobile, Sprint, Vodafone, Orange, BT Group, Telstra, Deutsche Telekom, Comcast, Time Warner Cable, CenturyLink, NTT Communications, Tata Communications, SoftBank, China Mobile, Singtel, Telus, Rogers Communications, Bell Canada, Telkom Indonesia, Telkom South Africa, Telmex, Telia Company, Telkom Kenya
University of Córdoba
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 Hillstone T-Series vs. OPNsense and other solutions. Updated: June 2025.
858,469 professionals have used our research since 2012.