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92,028 views|56,036 comparisons
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92,215 views|80,413 comparisons
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Comparison Buyer's Guide
Executive Summary
Updated on Jun 2, 2022

We performed a comparison between OPNsense and pfSense based on our users’ reviews in four categories. After reading all of the collected data, you can find our conclusion below.

  • Ease of Deployment: All the OPNsense reviewers agree that the initial setup is straightforward and easy. Most pfSense users say that its initial setup is straightforward, but a small percentage disagree, feeling that the setup is complex and requires a higher level of technical expertise.

  • Features: Users of both products are for the most part very satisfied with their scalability, stability, VPN features, and overall performance. OPNsense reviewers like its user-friendly interface and reporting tools. Several OPNsense users say it is less suitable for large-scale implementations. pfSense reviewers say it is robust, but its user interface could be enhanced. Several pfSense users mention that its security level should be improved.

  • Pricing: OPNsense and pfSense are both open-source solutions and are free of charge.

  • Service and Support: Both OPNsense and pfSense offer commercial support in addition to free online support forums. Reviewers of both solutions report being satisfied with the level of support they receive. pfSense users, in particular, find the community support and YouTube tutorials for the product to be very extensive and helpful.

Comparison Results: OPNsense ultimately won out in this comparison. Our reviewers agree that OPNsense is easy to install and easy to use, while pfSense was less so. One area where pfSense did come out on top was in the free support category.

To learn more, read our detailed OPNsense vs. pfSense Report (Updated: May 2023).
710,326 professionals have used our research since 2012.
Q&A Highlights
Question: Why is pfSense's firewall better than OPNsense's?
Answer: They are pretty much the same... OPNsense has a better GUI... The community in pfSense is much bigger... OPNSense has more frequent updates... but other than that... you can not make mistakes...
Featured Review
Quotes From Members
We asked business professionals to review the solutions they use.
Here are some excerpts of what they said:
Pros
"The feature my customers find the most valuable is the exportability.""The main thing that I love the most is its policy and objects. Whenever I try to give access to a user, I can create an object via group creation in the object fields. This way, I am not able to enter a user in the policy repeatedly.""Its Snort 3 IPS has better flexibility as far as being able to write rules. This gives me better granularity.""The security features are the most valuable. My customers find the security products very useful because nowadays there are many threats from the internet and other malicious users. The security products really help.""Cisco's engineer helped us with a lot of scripting to see what existed. Previously, we didn't have a proper policy. In fact, we didn't have any policy because we didn't have any firewall for the data center, so generating a policy was a big challenge. Cisco's engineer helped us to do some scripting and find out what kind of policy we can have and organize those policies. That was nice.""The ASDM (Adaptive Security Device Manager) which is the graphical user interface, works out, and Cisco keeps it current.""ASA integrates with FirePOWER, IPS functionality, malware filtering, etc. This functionality wasn't there in the past. With its cloud architecture, Cisco can filter traffic at the engine layer. Evasive encryptions can be entered into the application, like BitTorrent or Skype. This wasn't possible to control through a traditional firewall.""Previously, our customers had to always utilize hand-to-hand delivery. Now, they are able to move completely to a secure digital method. They use a strictly dark fiber optics connection from a central location to the endpoint."

More Cisco Secure Firewall Pros →

"I have found the solution has some great features overall, such as guest access capabilities, dashboards, and ease of use. There is plenty of documentation and support and it has the plugins that I needed.""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.""The system in general is quite flexible.""OPNsense could improve by making the configuration more web-based rather than shell or command-line-based.""The technical support is very good.""What I like best about OPNsense is that, as a firewall, it's pretty good. I'm quite impressed with it. I had an excellent experience with OPNsense, which helped me achieve the targets I wanted.""The solution has high availability.""We have been operating here in our lab for several months, and everything appears to be extremely stable."

More OPNsense Pros →

"It is a very good solution for enterprises that need a VPN for their employees. It is the best way to provide a remote work facility to employees at a very low cost. Other solutions that I have had in the past were very expensive. Enterprises don't always have that kind of money to invest.""A free firewall that is a good network security appliance.""The firewall sensor is highly effective, and it's easy to deploy. You can deploy pfSense with limited hardware resources. It's not necessary to have an appliance with much RAM to make it work. It's cost-effective and performs well.""The solution has good customization abilities and plenty of features.""I like pfSense's security features.""The most valuable features of pfSense are security, user-friendliness, and helpful online management.""The solution is very easy to use and configure.""What I found most valuable is the cost of the platform, the flexibility of the platform, and the fact that the ongoing fees are not there as they are with the competitor. Some people may think you're taking a risk with using Opensource. I think it just provides the end user, specifically for us small, medium business providers of services, the flexibility we need at the right cost to provide them a higher end, almost enterprise type service."

More pfSense Pros →

Cons
"This solution could be more granular and user-friendly.""The operation of the ASA is good but the problem is that whenever you require an upgrade, there are multiple pieces of software that you have to upgrade. Extensive planning is required, because if you upgrade one piece of the software it has to be compatible with the others as well. You always need to check the compatibility metrics.""I would like more features in conjunction with other solutions, like Fortinet.""Recently, we have been having an issue with the ASA firewall. We haven't found the root cause yet and are still working on it. We failed over the firewall from active to passive and suddenly that resolved the issue. We are now working to find the root cause.""It would be great to have all the data correlated to have an overview and one point of administration.""One thing that Cisco could improve is the GUI. The graphic user interface should be more user-friendly.""Cisco Secure Firewall should be easier to handle. It uses ASDM, which is not easy to understand. It would be better if there was direct access via HTTPS.""I'm not a big fan of the FDM (Firepower Device Manager) that comes with Firepower. I found out that you need to use the Firepower Management Center, the FMC, to manage the firewalls a lot better. You can get a lot more granular with the configuration in the FMC, versus the FDM that comes out-of-the-box with it. FDM is like Firepower for dummies."

More Cisco Secure Firewall Cons →

"Its interface should be a little bit better.""The IPS solution could be more reliable.""The interface isn't so friendly user. But we have some technicians here who are quite confident with this tool. OPNSense could maybe add sets of rules so it's simpler to manage different groups with particular needs.""They should improve IPEs for security in the future.""OPNsense could improve by making the configuration more web-based rather than shell or command-line-based.""There is room for improvement in SSL inspection.""An area for improvement in OPNsense is the hardware, which needs to be updated more frequently. DNS blocking is another good feature I want to be added to the solution. pfSense has a peer-blocking feature that I also want to see in OPNsense.""The interface needs to be simplified. It is not user-friendly."

More OPNsense Cons →

"More documentation would be great, especially on new features because sometimes, when new features come out, you don't get to understand them right off the bat. You have to really spend a lot of time understanding them. So, more documentation would be awesome.""The solution could be more user-friendly, and the graphical interface needs some work so that someone without an IT background can use the application. I would like the ability to manage the on-premise appliance from the cloud. When I'm not in the office, it would be great to connect to the pfSense server and administer the network remotely.""Other solutions provide more scope for growth. For instance, we can have only 10 to 20 employees on VPN, but other solutions can support more users. We also have more capabilities to increase the performance of the solution.""In terms of areas of improvement, the interface seemed like it had a lot. The GUI interface that I had gotten into was rather elaborate. I don't know if they could zero in on some markets and potentially for small, medium businesses specifically, give them a stripped-down version of the GUI for pfSense.""There could be a way to remote to it through a mobile app. You can always browse through your browser on your mobile phone or tablet, but it would be good to have a dedicated app. I understand that iOS and Android developers are expensive, but there should be a mobile app.""Ultimately, we'd like something stronger, and something that can handle threats better in real-time.""The integration should be improved.""The user interface can be improved to make it easier to add more features. And pfSense could be better integrated with other solutions, like antivirus."

More pfSense Cons →

Pricing and Cost Advice
  • "This solution is expensive and other solutions, such as FortiGate, are cheaper."
  • "Its pricing is good and competitive. There is a maintenance cost. It includes SecureX that makes it cost-effective as compared to the other solutions where you have to pay for XDR and SOAR capabilities."
  • "When we are fighting against other competitors for customers, whether it is a small or big business, we feel very comfortable with the price that Firepower has today."
  • "Pricing is the same as other competitors. It is comparable. The licensing has gotten better. It has been easier with Smart Licensing."
  • "It is expensive. There is a cost for everything. There is per year license cost and support cost. There is also a cost for any training, any application, and any resource. Things are very costly to do with Cisco. Other brands are cheaper. They are also more flexible in terms of training, subscription, and licensing. They give lots and lots of years free. They provide more than Cisco."
  • "When we bought it, it was really expensive. I'm not aware of the current pricing. We had problems with licensing. After our IPS subscription ended, we couldn't renew it because Cisco was moving to the next-generation firewall platform. So, they didn't provide us with the new license."
  • "Its price is moderate. It is not too expensive."
  • "I like its licensing because you buy the license once, and it is yours. We don't have to go for a subscription. So, I liked how they licensed Cisco ASA. Our clients are also very satisfied with its licensing model."
  • More Cisco Secure Firewall Pricing and Cost Advice →

  • "As an appliance, it's in the medium price range."
  • "Its pricing is unbeatable in comparison to other firewalls. You can have a small instance that could be €80 a month with the hardware underneath. Azure Firewall and FortiGate are out of the question at this price. If you are on a public cloud, you need the underlying infrastructure. Other than that, there is no additional cost. If you have it on-prem, you have to buy the server or the appliance. The hardware cost is replaced with the infrastructure cost in the cloud. You also have costs for the public IPs and underlying VMs, but that's not related to OPNsense. It would be the same for a FortiGate deployment on Azure. You need a FortiGate license, and you need the underlying infrastructure that scales up depending on your needs."
  • "It is open source and free."
  • "The price of OPNsense is good."
  • "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."
  • More OPNsense Pricing and Cost Advice →

  • "pfSense is an open-source solution and free to use."
  • "There is an open-source community version that is available."
  • "I am using the community version of the solution and it is priced well. There is a cost of learning how to use the solution, if it was free it would be better."
  • "I am using the free version of pfSense."
  • "Our customers must pay for an annual license."
  • "I would recommend it for a small business or a startup as a starting point. It's also good for companies that are on a tight budget."
  • "The price of pfSense is reasonable. However, there is a free version available."
  • "It is about €1,000. It is a one-time payment. I do not have a monthly or yearly subscription. I don't subscribe to any subscription because I hate cloud services. There are no additional costs."
  • More pfSense Pricing and Cost Advice →

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    Questions from the Community
    Top Answer: When you compare these firewalls you can identify them with different features, advantages, practices and… more »
    Top Answer:One of our favorite things about Fortinet Fortigate is that you can deploy on the cloud or on premises. Fortinet… more »
    Top Answer:It is easy to integrate Cisco ASA with other Cisco products and also other NAC solutions. When you understand the Cisco… more »
    Top Answer:Two of the most common and well recognized firewalls, PfSense and OPNsense both support site-to-site IPsec VPN and… more »
    Top Answer:The most valuable features of OPNsense are the GUI and frequent updates.
    Top Answer:We are using the free open-source version of the solution. There is a paid version that has additional features. I rate… more »
    Top Answer:You don't really specify what type of router you are looking for but if you are talking about a gateway router I… more »
    Top Answer:Fortinet’s Fortigate is a firewall solution we use and are very much satisfied with its performance. We find Fortigate… more »
    Top Answer:The most valuable features of pfSense are security, user-friendliness, and helpful online management.
    Comparisons
    Also Known As
    Cisco ASA Firewall, Cisco Adaptive Security Appliance (ASA) Firewall, Cisco ASA NGFW, Cisco ASA, Adaptive Security Appliance, ASA, Cisco Sourcefire Firewalls, Cisco ASAv, Cisco Firepower NGFW Firewall
    Learn More
    OPNsense
    Video Not Available
    Netgate
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    Overview

    Cisco Secure Firewall, including Firepower, is a powerful perimeter security solution used for network security, data center protection, advanced malware protection, and site-to-site VPNs. Its most valuable features include NGIPS, application visibility and control, VLAN implementations, intrusion prevention, threat defense, and NAT. 

    The solution has helped organizations discover their environment, improve security, implement dynamic policies, reduce operational costs, and protect against threats from outside and within the data center. Overall, Cisco Secure Firewall is a valuable tool for securing organizations and providing visibility into threats.

    OPNsense is a user-friendly, fast-track, open-source FreeBSD-based firewall and routing platform. This software offers features that are generally available from costly commercial firewalls, with the added benefit of open and verifiable sources. The firewall provides users, developers, and organizations with an advantageous environment through transparency. The development of this project is driven by a strong focus on security and code quality.

    The solution offers a variety of components, such as:

    • Weekly security updates. These updates provide the user with the ability to reach new emerging threats in a timely manner through small increments.

    • Two major releases every year. These yearly releases are on a fixed release cycle and provide organizations with the ability to plan ahead of an upcoming upgrade.

    • A roadmap of instructions. Each major release provides a guide and a set of clear goals.

    A team of professionals developed OPNsense. Other professional and experienced software architects, engineers, and developers are encouraged to join in the development of the solution to make it as successful as possible. OPNsense offers a variety of rich features with each release. Each upgrade is based on FreeBSD for continual, long-term support and utilizes a freshly advanced MVC framework based on Phalcon. OPNsense is committed to helping businesses, school networks, remote offices, hotels, and other markets in keeping their data protected.

    OPNsense Core Features

    OPNsense continually offers a free, complete, high-end security platform with new releases and features. With each release, OPNsense focuses on providing more unique and better security features in a timely manner. These features include:

    • Captive Portal
    • Built-in reporting and monitoring tools including RRD Graphs
    • Network Flow Monitoring
    • Traffic Shaper
    • Support for Plugins
    • Granular Control Over State Table
    • Dynamic DNS
    • Two-factor authentication throughout the system
    • Netflow Exporter
    • Encrypted Configuration Backup to Google Drive
    • Forward Caching Proxy (transparent) with Blacklist Support
    • Stateful inspection firewall
    • DNS Server & DNS Forwarder
    • High Availability & Hardware Failover (with configuration synchronization & synchronized state tables)
    • DHCP Server and Relay
    • Virtual Private Network (site to site & road warrior, IPsec, OpenVPN & legacy PPTP support)
    • Intrusion Detection and Prevention
    • 802.1Q VLAN support

    Reviews from Real Users

    OPNsense is a favorite security solution among reviewers for a number of reasons. Two of those reasons include the user-friendliness of the solution, which makes it easy to use, and its ability to easily scale.

    For many, a user-friendly solution is essential. FiorindoDi A., a system administration specialist at a tech vendor, says, "The graphic user interface is very good and it is user-friendly, which makes the product easy-to-use."

    Peerspot reviewers speak of the scalability of the solution. For example, an anonymous cloud and infrastructure manager at a venture capital and private equity firm reviewer notes, "OPNsense is easy to scale when running on the hardware."

    pfSense is a powerful and reliable network security appliance primarily used for security purposes such as firewall and VPN or traffic shaping, network management, and web filtering. It is commonly used by small businesses and managed service providers to protect their customers' networks and enable remote access through VPNs. 

    The solution is praised for its stability, user-friendly interface, scalability potential, open-source nature, free cost, easy installation, firewall capabilities, security features, flexibility, and simplicity. Overall, pfSense is a cost-effective solution for enterprises that need a VPN for their employees.

    pfSense Key Features

    pfSense has many key features and capabilities, including:

    • Strength and accuracy: pfSense is able to always follow either default or custom rules, making it a stronger firewall than some of its competitors. It also filters traffic separately, whether it’s coming from your internal network of devices or the open internet, allowing you to set different rules and policies for each.

    • Flexibility: pfSense can work both as a basic firewall and as a complete security system because it gives you the flexibility to integrate additional features as code where necessary.

    • Open-source: Because it is open-source, not only is pfSense free to use, but community members can contribute to the code to make it a better software.

    • User-friendly: Usually firewall products are not user-friendly because they often include complex settings, options, and features that require fine-tuning. pfSense’s interface is simple, direct, and easy to use.

    • WireGuard Support: Instead of building your own VPN using pfSense, or settling for a commercial VPN provider, you can directly integrate WireGuard with the pfSense firewall.

    • Speed Management and Fault Tolerance: pfSense’s multi-WAN feature allows your system to continue operating in case components fail.

    • Well-supported: pfSense regularly has security and feature updates. It also has a documentation site and a well-informed and knowledgeable support forum.

    Reviews from Real Users

    Below is some feedback from PeerSpot Users who are currently using the solution.

    Bojan O., CEO at In.sist d.o.o., says, “The classic features, such as content inspection, content protection, and the application-level firewall, are the most important."

    Another PeerSpot user, a chef at a media company, explains what he finds most valuable about pfSense: "The plugins or add-ons are most valuable. Sometimes, they are free of charge, and sometimes, you have to pay for them, but you can purchase or download very valuable plugins or add-ons to perform internal testing of your network and simulate a denial-of-service attack or whichever attack you want to simulate. You can also remote and monitor your network and see where the gap is."

    T.O., a VP of Business Development at a tech services company, mentions, "What I found most valuable is the cost of the platform, the flexibility of the platform, and the fact that the ongoing fees are not there as they are with the competitor."



    Offer
    Learn more about Cisco Secure Firewall
    Learn more about OPNsense
    Learn more about pfSense
    Sample Customers
    There are more than one million Adaptive Security Appliances deployed globally. Top customers include First American Financial Corp., Genzyme, Frankfurt Airport, Hansgrohe SE, Rio Olympics, The French Laundry, Rackspace, and City of Tomorrow.
    CompuNet Systems GmbH,
    Nerds On Site Inc., RKC Development Inc., Expertech, Fisher's Technology, Ncisive, Consulting, CPURX, Vaughn's Computer House Calls, Imeretech LLC, Digital Crisis, Carolina Digital Phone, Technigogo Technology Services, The Simple Solution, SwiftecITInc, Rocky Mountain Tech Team, Free Range Geeks, Alaska Computer Geeks, Lark Information Technology, Renaissance Systems Inc., Cutting Edge Computers, Caretech LLC, GoVanguard, Network Touch Ltd, P.C. Solutions.Net, Vision Voice and Data Systems LLC, Montgomery Technologies, Techforce, Concero Networks, ASONInc, CPS Electronics and Consulting, Darkwire.net LLC, IT Specialists, MBS-Net Inc., VOICE1 LLC, Advantage Networking Inc., Powerhouse Systems, Doxa Multimedia Inc., Pro Computer Service, Virtual IT Services, A&J Computers Inc., Envision IT LLC, CommunicaONE Inc., Bone Computer Inc., Amax Engineering Corporation, QPG Ltd. Co., IT 101 Inc., Perfect Cloud Solutions, Applied Technology Group Inc., The Digital Sun Group LLC, Firespring
    Top Industries
    REVIEWERS
    Financial Services Firm15%
    Comms Service Provider13%
    Computer Software Company12%
    Manufacturing Company8%
    VISITORS READING REVIEWS
    Computer Software Company18%
    Educational Organization11%
    Comms Service Provider10%
    Government7%
    REVIEWERS
    Comms Service Provider25%
    Logistics Company17%
    Financial Services Firm17%
    Aerospace/Defense Firm8%
    VISITORS READING REVIEWS
    Comms Service Provider16%
    Computer Software Company16%
    Government9%
    Educational Organization6%
    REVIEWERS
    University11%
    Marketing Services Firm9%
    Comms Service Provider9%
    Manufacturing Company8%
    VISITORS READING REVIEWS
    Computer Software Company15%
    Comms Service Provider15%
    Government9%
    Educational Organization6%
    Company Size
    REVIEWERS
    Small Business35%
    Midsize Enterprise24%
    Large Enterprise41%
    VISITORS READING REVIEWS
    Small Business28%
    Midsize Enterprise22%
    Large Enterprise51%
    REVIEWERS
    Small Business64%
    Midsize Enterprise12%
    Large Enterprise24%
    VISITORS READING REVIEWS
    Small Business30%
    Midsize Enterprise19%
    Large Enterprise52%
    REVIEWERS
    Small Business68%
    Midsize Enterprise18%
    Large Enterprise13%
    VISITORS READING REVIEWS
    Small Business31%
    Midsize Enterprise19%
    Large Enterprise51%
    Buyer's Guide
    OPNsense vs. pfSense
    May 2023
    Find out what your peers are saying about OPNsense vs. pfSense and other solutions. Updated: May 2023.
    710,326 professionals have used our research since 2012.

    OPNsense is ranked 6th in Firewalls with 15 reviews while pfSense is ranked 3rd in Firewalls with 31 reviews. OPNsense is rated 8.2, while pfSense is rated 8.6. The top reviewer of OPNsense writes "There are lots of capabilities built-in: Few would be High Availability, Proxy, DNS, Intrusion detection/prevention, content filtering, traffic and bandwidth management with 2factor autn. ". On the other hand, the top reviewer of pfSense writes "Feature-rich, well documented, and there is good support available online". OPNsense is most compared with Untangle NG Firewall, Sophos XG, Fortinet FortiGate, Sophos UTM and Check Point NGFW, whereas pfSense is most compared with Fortinet FortiGate, Sophos XG, Untangle NG Firewall, Sophos UTM and WatchGuard Firebox. See our OPNsense vs. pfSense report.

    See our list of best Firewalls vendors.

    We monitor all Firewalls reviews to prevent fraudulent reviews and keep review quality high. We do not post reviews by company employees or direct competitors. We validate each review for authenticity via cross-reference with LinkedIn, and personal follow-up with the reviewer when necessary.