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Juniper SRX Series Firewall vs OPNsense comparison

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Comparison Buyer's Guide

Executive SummaryUpdated on Dec 28, 2025

Review summaries and opinions

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

ROI

Sentiment score
5.8
Fortinet FortiGate offers a good ROI with enhanced security, cost savings, and efficient policy-deployment, valued by clients.
Sentiment score
6.5
Organizations saved costs with Juniper SRX Firewalls, noting dependable security, scalability, and strong ROI, especially for certain industries.
Sentiment score
3.3
Organizations achieved quick ROI with OPNsense, reducing costs, licensing fees, and improving security, saving up to $100,000 annually.
Clients are now comfortable and not wasting productive hours on IT support.
Managing Director at a manufacturing company with 10,001+ employees
The automation part is giving us a cost benefit and speed; we can react faster.
BDM Fortinet & BDM Teamlead at Exclusive Networks
It's a very useful tool to mitigate and protect your enterprise.
Staff Infrastructure & Security Engineer at Mozn Systems
The network attacks reduced by approximately 60% after using that, even without customizing the custom configuration yet.
Senior IT Infrastructure Engineer at a real estate/law firm with 11-50 employees
For a very little investment, I was able to increase the security of my network.
Administrator at a retailer with 10,001+ employees
 

Customer Service

Sentiment score
6.6
Fortinet FortiGate support is mixed, praised for knowledge but criticized for delays, language issues, and varying regional experiences.
Sentiment score
6.8
Customer service and technical support are praised for expertise, though some note delays and cost concerns compared to competitors.
Sentiment score
5.5
OPNsense community offers strong, responsive support, often resolving user issues independently, with official service rated moderately high.
The quick resolution of issues with Fortinet FortiGate is due to the support of the company and the fact that the equipment is easy to work with.
IT Manager at a consultancy with 10,001+ employees
I would rate the technical support for Fortinet FortiGate a ten out of ten.
NAC Support at Rah Infotech Pvt Ltd
As a solution provider, when I encounter problems, I connect directly with Fortinet support, and they provide solutions within a very short time.
Manager, Information Technology Operation/Presales at TechMonarch
Technical support is very good.
CEO at a tech services company with 1-10 employees
Compared to some open-source projects with weak support, OPNsense stands out for having both a strong community and commercial backing options.
ISO 27001 Lead Implementer at a consultancy with 11-50 employees
I mainly rely on community support since the solution is open source.
Senior Client Solutions Architect at a tech services company with 1,001-5,000 employees
If you say you do not have one, it is finished. This is where the monopoly starts.
Senior Solutions Engineer at a educational organization with 201-500 employees
 

Scalability Issues

Sentiment score
7.1
Fortinet FortiGate is scalable and adaptable, with virtual machines offering flexibility and seamless performance praised across industries.
Sentiment score
7.6
Juniper SRX Series Firewall offers strong scalability and modularity but has limitations in clustering and advanced features performance.
Sentiment score
6.8
OPNsense offers scalable adaptability for various environments, performing well in small to mid-sized enterprises, with flexible resource capabilities.
They scale up really well from smaller models like the FortiGate 40 and 50 to bigger sites with the FortiGate 100 for more throughput - up to enterprise datacenters.
IT Manager at Daltons Limited
The variation comes in terms of the interfaces and throughputs, but from a security perspective, you get the same benefit, irrespective of whether you have an entry-level unit or an enterprise.
Cewa Solutions Architect at a tech services company with 11-50 employees
We determine sizing based on multiple factors: number of users, available links, traffic types, server count, services in use, and whether services will be published.
General Surgery Specialist at Helwan University Cairo
Customers buy new Juniper SRX Series Firewall units, and we migrate configurations on the new units very easily and quickly.
Consultant at Lantec
OPNsense is an extremely scalable solution.
Owner at Networks srl
I use Zenarmor, pinning it to one core for packet inspection, and the CPU performance seems very good.
Senior Client Solutions Architect at a tech services company with 1,001-5,000 employees
OPNsense's scalability is excellent; I just need to resize my hardware and upgrade the server, and voilà, I am good to go.
Senior IT Infrastructure Engineer at a real estate/law firm with 11-50 employees
 

Stability Issues

Sentiment score
7.7
Fortinet FortiGate is generally stable, though firmware updates can cause issues; proper configuration is crucial for performance.
Sentiment score
8.3
Juniper SRX Firewalls are reliable and effective for medium to large networks, with minor bugs resolved promptly.
Sentiment score
7.7
OPNsense is stable and user-friendly, though it faces minor VPN and update issues; community support enhances user experience.
We're experiencing 99.999% availability consistently.
Manager, Information Technology at a consumer goods company with 11-50 employees
I would rate the stability of Fortinet FortiGate a ten out of ten.
NAC Support at Rah Infotech Pvt Ltd
Currently, we are experiencing a general outage of one of the main internet service providers of the Dominican Republic, and we have not been impacted in our operations because with SD-WAN, we have another internet service provider and we are working with the second WAN connection without any disruption.
CISO at a financial services firm with 1,001-5,000 employees
The solution has absolutely high stability.
CEO at a tech services company with 1-10 employees
For home and small network use, OPNsense is also reliable, providing enterprise-grade security at no cost.
ISO 27001 Lead Implementer at a consultancy with 11-50 employees
OPNsense is the same, but it does have a way of installing the Realtek drivers, which gives you a lot more stability overall on the system.
Network and Programming Specialist at Twentytwo Integration
The only challenge faced was its inadequacy to manage large voice traffic effectively, even with dedicated hardware.
Senior Network Engineer at a comms service provider with 11-50 employees
 

Room For Improvement

Fortinet FortiGate faces high costs, technical and usability issues, complex licensing, and requires improved support, stability, and AI integration.
Juniper SRX Series Firewall needs improved UI, integration, management, support, performance, and pricing strategy for better user experience.
OPNsense improves wireless management, VPN features, and interface while needing better virtual integration and enhanced threat intelligence and security.
These sessions should be around five to ten minutes long, allowing users and partners to quickly grasp the information without disrupting their daily tasks.
Managing Director at a manufacturing company with 10,001+ employees
The solution should be able to implement machine learning and analytics of all the logs for threat detection and protection.
Senior Systems Engineer at Caribbean Development Company
It would be better for customers to get immediate replacements even with a standard subscription.
Director at a tech services company with 11-50 employees
With a better user interface and graphical interface, the Juniper SRX Series Firewall could be a superior solution compared to what it is now.
CEO at a tech services company with 1-10 employees
With my extensive experience with the Juniper SRX Series Firewall, the robustness of the SD-Cloud or Security Director interface and overall functionality needs to be improved to compete with leading firewall solutions.
Global Juniper Presales Engineer at Westcon-Comstor
It is working only with firewall and VPN concentrator and router functionality.
Consultant at Lantec
I would like the APIs to be more mature and more developed and have more options to automate threat hunting.
Owner at Networks srl
Enhancing its performance for significant amounts of data traffic would make it closer to a perfect solution.
Senior Network Engineer at a comms service provider with 11-50 employees
It would be beneficial if they could create some videos on how to set it up themselves.
Administrator at a retailer with 10,001+ employees
 

Setup Cost

Fortinet FortiGate offers competitive pricing with good value, but users highlight concerns about renewal costs and feature expenses.
Juniper SRX Series Firewall offers competitive pricing and value, though support costs are high and some features need subscriptions.
OPNsense offers cost-effective open-source network security, with optional support fees but no licensing costs, competing with FortiGate and Azure Firewall.
Last year, I renewed the support for three years, which can sometimes be expensive but depends on the security benefits and how it helps us.
Network & System Admin at Invoke Studios
It offers cost savings as it is generally cheaper than the competition.
IT Infrastructure Architect at Apotek 1
It is about 20% cheaper.
Network Security Engineer at TD SYNNEX
The Juniper SRX Series Firewall is affordable and cost-effective.
Global Juniper Presales Engineer at Westcon-Comstor
They use AI for packet inspection, which integrates with OPNsense and pfSense.
Network and Programming Specialist at Twentytwo Integration
I consider the pricing of OPNsense to be high when compared with other market products.
Senior Network Engineer at a comms service provider with 11-50 employees
OPNsense is free, the licensing and setup was easy.
Administrator at a retailer with 10,001+ employees
 

Valuable Features

Fortinet FortiGate excels in easy deployment, advanced security features, integration, scalability, user-friendly interface, and cost-effectiveness for robust network protection.
The Juniper SRX Firewall offers comprehensive security, ease of use, and scalability, featuring high availability, routing, and virtualization capabilities.
OPNsense provides scalable, cost-effective network security with advanced VPN, firewall, and filtering features for enterprises and small businesses.
We got a firewall and gave an SSL VPN to my client to connect to their servers, after which, such kind of activities involving ransomware attacks stopped.
Owner at Mindware Computer Solutions
They put in a thing called the FortiCookbook, which is very easy to read with real-life scenarios that make networking tasks like joining networks very straightforward.
IT Manager at Daltons Limited
The firewall and VPN features are the most valuable in protecting our customers' networks.
Sales & Support at a tech services company with 1-10 employees
The routing, Layer 2, 3, 4 solutions in the network layers are valuable features.
CEO at a tech services company with 1-10 employees
Juniper SRX Series Firewall helps in terms of network security for my customers by protecting end-users from any form of cyber attack or threat, with a good database that updates and pushes out signatures to defend against threats.
Global Juniper Presales Engineer at Westcon-Comstor
The most valuable feature is the HA high availability cluster for active-active Juniper SRX Series Firewall.
Consultant at Lantec
The most valuable features include the basic firewall functionality and the GeoIP location services.
Senior Network Engineer at a comms service provider with 11-50 employees
I can have a Wi-Fi VLAN and feel secure that the server network or the VM network that I have on a different VLAN are isolated, and they cannot talk to one another, which adds a great level of security.
Administrator at a retailer with 10,001+ employees
It offers enterprise-grade features such as intrusion detection and prevention system, VPN support, traffic shaping, and web filtering, all without license cost.
ISO 27001 Lead Implementer at a consultancy with 11-50 employees
 

Categories and Ranking

Fortinet FortiGate
Sponsored
Ranking in Firewalls
1st
Average Rating
8.4
Reviews Sentiment
6.9
Number of Reviews
587
Ranking in other categories
Secure Web Gateways (SWG) (2nd), Intrusion Detection and Prevention Software (IDPS) (1st), Software Defined WAN (SD-WAN) Solutions (1st), WAN Edge (1st), ZTNA (1st), Unified Threat Management (UTM) (1st)
Juniper SRX Series Firewall
Ranking in Firewalls
22nd
Average Rating
7.8
Reviews Sentiment
7.0
Number of Reviews
94
Ranking in other categories
Unified Threat Management (UTM) (7th)
OPNsense
Ranking in Firewalls
4th
Average Rating
8.2
Reviews Sentiment
6.7
Number of Reviews
46
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of March 2026, in the Firewalls category, the mindshare of Fortinet FortiGate is 18.3%, down from 21.1% compared to the previous year. The mindshare of Juniper SRX Series Firewall is 1.8%, up from 1.5% compared to the previous year. The mindshare of OPNsense is 10.3%, down from 12.1% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Firewalls Mindshare Distribution
ProductMindshare (%)
Fortinet FortiGate18.3%
OPNsense10.3%
Juniper SRX Series Firewall1.8%
Other69.6%
Firewalls
 

Featured Reviews

Vasu Gala - PeerSpot reviewer
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.
Chinedu Onwurah - PeerSpot reviewer
Global Juniper Presales Engineer at Westcon-Comstor
Robust security measures and cost-effectiveness meet diverse industry needs
The biggest benefit of Juniper SRX Series Firewall overall is that it is rugged and cost-effective, offering basic firewall features and additional licensed features as needed. The main challenge I see as a distributor is Juniper's rating in the Gartner report, where Juniper is not a leader in enterprise security, which often influences customer conversations. Most customers want to check the Gartner report before they engage, making it challenging to sell Juniper security. With my extensive experience with the Juniper SRX Series Firewall, the robustness of the SD-Cloud or Security Director interface and overall functionality needs to be improved to compete with leading firewall solutions.
Moutaz Sheikh Alard - PeerSpot reviewer
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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Top Industries

By visitors reading reviews
Computer Software Company
11%
Comms Service Provider
10%
Manufacturing Company
8%
Financial Services Firm
6%
Manufacturing Company
8%
Computer Software Company
8%
Comms Service Provider
8%
University
6%
Comms Service Provider
17%
Computer Software Company
11%
Manufacturing Company
7%
University
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business360
Midsize Enterprise135
Large Enterprise190
By reviewers
Company SizeCount
Small Business46
Midsize Enterprise20
Large Enterprise32
By reviewers
Company SizeCount
Small Business31
Midsize Enterprise6
Large Enterprise8
 

Questions from the Community

Which is the better NGFW: Fortinet Fortigate or Cisco Firepower?
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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...
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 ...
What is your experience regarding pricing and costs for Juniper SRX?
The Juniper SRX Series Firewall is affordable and cost-effective. The cost depends on the use case; for firewalls, it...
What advice do you have for others considering Juniper SRX?
I work with Aruba, Juniper, and FortiGate Fortinet solutions. I do not work with Juniper Mist. I only work with Junip...
What needs improvement with Juniper SRX Series Firewall?
I do not work with threat prevention, so customers do not purchase this license for Juniper SRX Series Firewall. It i...
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?
My experience with pricing, setup cost, and licensing is that since OPNsense is free, the licensing and setup was eas...
 

Also Known As

Fortinet FortiGate Next-Generation Firewall
Juniper SRX
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
7-Eleven, AARNet Pty Ltd, Allegro Networks, alltours GmbH, Apollo Hotel Papendrecht, Armstrong Atlantic State University, Atlantech Online, Availity, Bajaj Capital, Baloise Insurance, BancABC, BAS Group, Black Lotus, Blue Box, Borealis, Carilion Clinic, Catholic Health System, CATV, Champlain College, Chinas Ministry of Railways, China University of Mining and Technology (CUMT), Cloud Dynamics, CloudSeeds, Cloudwatt, CODONiS, Colt Technology Services, Cork Internet Exchange, CSS Versicherung AG, CyrusOne, Danish Crown, Deloitte Belgium, Department of Energy, Divona Telecom, DQE Communications, DreamHost, European Government Agency, Expedient, Financial Market Information Services Provider, Fluidata, Fonality, Fox Sports, Global Financial Institution, Global Investment Bank, Global Investment Company, Energy Sciences Network (ESnet), Goethe University, HEAnet, High Performance Networks Inc., Hillenbrand
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 Juniper SRX Series Firewall vs. OPNsense and other solutions. Updated: March 2026.
884,122 professionals have used our research since 2012.