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Top paid & free alternatives to OPNsense includes Avast, ESET Smart Security Nod32, FortiClient, Palo Alto Networks, ZoneAlarm Pro Firewall, Sophos, GlassWire Firewall, TinyWall, PrivateFirewall and SonicWall Email Security. Analyze a range of top Firewall Software that offer similar benefits at competitive prices. Empower your team by choosing the best OPNsense competitor that meets your unique business requirements.
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Most Popular OPNsense Alternatives
Product and vendor alternatives are selected from a pool of vendors/products in the market. SoftwareSuggest uses a combination of user responses to the question, “Which other vendor did you consider in your evaluation?”. We also consider the total review volume for those vendors/products within the market.
SoftwareSuggest offers verified & unbiased user reviews based on user ratings and feedback. Our ratings and reports do not contain any paid placements. Learn more about our ranking methodology.
Best Competitors and Alternatives to OPNsense
Showing 1 - 12 of 15 products
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#3
Category Champions | 2025
User Review
This information is based on user reviews.
Overall, the experience was good, but it makes your PC slow. The interface is super easy to use, and you will definitely love it. I have been using Avast Antivirus for the last 5 years and am fully satisfied. Thank you. Read Avast Reviews
Categories in Common with Avast
Common Alternatives of Avast and OPNsense
Avast review compared to OPNsense
"The best antivirus" - Abhishek - Lead Developer
Most users consider Avast is an excellent OPNsense alternative.
86.8% of users recommend this product
This information is based on user submitted reviews.
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#4
Category Champions | 2025
User Review
This information is based on user reviews.
Overall, the experience is very good. It is protecting my laptop quite well; there is not a single virus on my laptop. However, while using the internet, sometimes I am not able to access some websites, which is not okay for me. Otherwise, the product is very good. Read ESET Smart Security Nod32 Reviews
Categories in Common with ESET Smart Security Nod32
Alternatives of ESET Smart Security Nod32 and OPNsense
ESET Smart Security Nod32 review compared to OPNsense
"Eset smart security" - Manshul - Software engineer
Most users consider ESET Smart Security Nod32 is an excellent OPNsense alternative.
93.3% of users recommend this product
This information is based on user submitted reviews.
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#5
Contenders | 2025
User Review
This information is based on user reviews.
Its very stable VPN app also gets connected in slow-speed internet, very useful for office use. As a Fortinet company, it provides higher security for our data. Bottom Line: FortiClient can be used to provide vulnerability scanning and configure outbound VPN connections. Given th... Read FortiClient Reviews
Categories in Common with FortiClient
Common Alternatives of FortiClient and OPNsense
FortiClient review compared to OPNsense
"FortiClient VPN" - Mahesh Patil - Engineer
95% of users recommend this product
This information is based on user submitted reviews.
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#6
Contenders | 2025
User Review
This information is based on user reviews.
I have been using Palo Alto Networks GlobalProtect for more than 2 years since it was purchased by my company for global connectivity and remote applications. It has never disappointed me. Previously, we used Pulse Secure Networks, which took a long time to connect and required m... Read Palo Alto Networks Reviews
Categories in Common with Palo Alto Networks
Firewall Software
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Endpoint Security Software
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Secure Web Gateways Platform
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Cloud Workload Protection Platform
Common Alternatives of Palo Alto Networks and OPNsense
Palo Alto Networks review compared to OPNsense
"Palo Alto Networks review" - Adnan Afzal
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#7
Contenders | 2025
User Review
This information is based on user reviews.
In my opinion, it is one of the best software options considering the price range and work facility. I like it very much; it is easy to operate and provides excellent feedback and response regarding its functions. Some of the features of this firewall are explained below: 1. Zon... Read ZoneAlarm Pro Firewall Reviews
Categories in Common with ZoneAlarm Pro Firewall
Common OPNsense and ZoneAlarm Pro Firewall Alternatives
ZoneAlarm Pro Firewall review compared to OPNsense
"Best Firewall Software" - Ayush
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#8
Contenders | 2025
User Review
This information is based on user reviews.
I have used Sophos for a number of years with no issues. It has detected many viruses, and I have never had a problem with Sophos. Read Sophos Reviews
Categories in Common with Sophos
Alternatives of Sophos and OPNsense
Sophos review compared to OPNsense
"Great software" - Ishita
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#9
Contenders | 2025
User Review
This information is based on user reviews.
Using for a month. Great for tracking data usage, especially on PCs. You can easily block apps, and other features like the firewall also work great. Some features are locked, but I think if you want the locked features, it's still worth it considering how polished the app is. Read GlassWire Firewall Reviews
Categories in Common with GlassWire Firewall
Common Alternatives of GlassWire Firewall and OPNsense
GlassWire Firewall review compared to OPNsense
"Great App that track the Data Usage and other Features " - Abdu
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#10
Contenders | 2025
User Review
This information is based on user reviews.
This is one of the best firewalls for computers in this era. Read TinyWall Reviews
Categories in Common with TinyWall
Software Common with OPNsense and TinyWall
TinyWall review compared to OPNsense
"Great firewall for pc" - Shashank - Review
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#11
Emergents | 2025
Product Description
Privatefirewall multi-layered endpoint security software protects 32 and 64-bit Windows desktops and servers from malware and unauthorized use. Personal firewall, packet inspection, URL filtering, anti-logger, process monitor, and application/system behavior modeling and anomaly ... Learn more about PrivateFirewall
Common Alternatives of PrivateFirewall and OPNsense
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#12
Emergents | 2025
Product Description
SonicWall Email Security is a robust solution designed to protect against email threats. It offers advanced threat detection, anti-phishing capabilities, and seamless integration, ensuring your communications remain secure and uninterrupted, enhancing productivity and peace of mi... Learn more about SonicWall Email Security
Software Common with OPNsense and SonicWall Email Security
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