--- title: OPNsense® Reviews meta_title: 'OPNsense® Reviews 2026: Details, Pricing, & Features | G2' meta_description: Filter reviews by the users' company size, role or industry to find out how OPNsense® works for a business like yours. aggregate_rating: rating_value: 4.8 review_count: 5 scale: '5' date_modified: '2026-09-22' parent_category: name: Network Security url: https://www.g2.com/categories/network-security --- # OPNsense® Reviews **Vendor:** Deciso B.V. **Category:** [Firewall Software](https://www.g2.com/categories/firewall-software) **Average Rating:** 4.8/5.0 **Total Reviews:** 5 ## About OPNsense® OPNsense® is an open-source, user-friendly firewall and routing platform that combines the extensive features of commercial products, ranging from a stateful firewall to web application control and integrated inline intrusion detection and prevention. Based on FreeBSD for long-term support, OPNsense’s focus on security brings unique features such as an easy to use one time password authentication for various components. Through its modular design and - the in house developed - Model View Controller framework the product is extendible, and API functionality is readily available. The robust and reliable update mechanism gives OPNsense® the ability to provide important security updates in a timely fashion. ## OPNsense® Pros & Cons Pros and Cons are compiled from review feedback and grouped into themes to provide an easy-to-understand summary of user reviews. **What users like:** - Users love the **user-friendly interface** of OPNsense, making it accessible for all skill levels. (2 reviews) - Users appreciate the **affordable pricing** of OPNsense®, finding it cost-effective and beneficial for both personal and professional use. (1 reviews) - Users benefit from the **helpful community support** of OPNsense®, enhancing their experience and meeting firewall needs. (1 reviews) - Users value the **responsive customer support** of OPNsense, appreciating its availability and helpful assistance. (1 reviews) - Users appreciate the **user-friendly interface** of OPNsense®, making it accessible for non-technical individuals. (1 reviews) - Firewall Efficiency (1 reviews) - Performance Speed (1 reviews) - Response Speed (1 reviews) - Updates (1 reviews) - Versatility (1 reviews) **What users dislike:** - Users find the **difficult installation** phase challenging, especially without prior technical knowledge or clear documentation support. (1 reviews) - Users find the **difficult learning curve** challenging, especially during the initial setup without sufficient technical knowledge. (1 reviews) - Users find the **poor documentation** of OPNsense® challenging, especially for those unfamiliar with technology. (1 reviews) ## OPNsense® Reviews ### 1. Flexible Firewall Solution with Strong Community Support, but Complex Configuration Options **Rating:** 4.5/5.0 stars **Reviewed by:** Scott B. | Unix Linux System Administrator III, Small-Business (50 or fewer emp.) **Validated Reviewer:** Validated through LinkedIn **Source: Organic Review from User Profile:** Invitation from G2. This reviewer was not provided any incentive by G2 for completing this review. **Reviewed Date:** October 14, 2025 **What do you like best about OPNsense®?** This product is highly flexible and supported by a helpful community. It meets all of my firewall requirements. **What do you dislike about OPNsense®?** Because it is flexible, there are many options available for finding the best configuration. **What problems is OPNsense® solving and how is that benefiting you?** This product offers an excellent firewall solution that can accommodate a wide range of needs. ### 2. My Experience with OPNSense **Rating:** 4.5/5.0 stars **Reviewed by:** Karan S. | Project Engineer, Enterprise (> 1000 emp.) **Validated Reviewer:** Validated through LinkedIn **Incentivized:** This reviewer was offered a nominal gift card as thank you for completing this review. **Source: G2 invite:** Invitation from G2. This reviewer was offered a nominal gift card as thank you for completing this review. **Reviewed Date:** October 17, 2024 **What do you like best about OPNsense®?** The thing I liked about using OPNsense is its excellent content filtering. I've heard from my seniors that it is very cost-effective for our company. In my personal use, I've noticed it has good authentication, and it initially offers a user-friendly interface. Additionally, it has a good performance, and the response time is very good. I use it almost every day. **What do you dislike about OPNsense®?** There aren't many dislikes here, but one thing I want to point out is that the initial setup is quite difficult if you aren't familiar with much of the tech. Also, for personal use, I was going through the documentation, but it wasn't very helpful. **What problems is OPNsense® solving and how is that benefiting you?** It provides good network security. Without connecting to this, I can't access my company's content, which is a very good idea. So, if someone has my laptop, without connecting to OPNsense, they can't access the content. Also, as I mentioned earlier, it is cost-effective. It has good web filtering, like my organization doesn't allow us to open our personal Gmail on the company laptop, so we can't access it, all thanks to OPNsense. ### 3. Secure our network **Rating:** 5.0/5.0 stars **Reviewed by:** Suraj K. | Hardware and Network Engineer, Mid-Market (51-1000 emp.) **Validated Reviewer:** Validated through LinkedIn **Incentivized:** This reviewer was offered a nominal gift card as thank you for completing this review. **Source: G2 invite:** Invitation from G2. This reviewer was offered a nominal gift card as thank you for completing this review. **Reviewed Date:** September 23, 2024 **What do you like best about OPNsense®?** OPNsense has a user-friendly web interface, making it easy to use even for people who aren’t very technically knowledgeable. The platform gets regular updates, ensuring that security issues are fixed promptly and new features are added. The customer support is good and always available for assistance **What do you dislike about OPNsense®?** Currently, we are not facing any challenges. everything is going well **What problems is OPNsense® solving and how is that benefiting you?** Previously, we were facing a security challenge, such as unknown websites opening. After implementing this firewall, we can block unknown websites (HTTP sites) and also allow or block websites as per our requirements. ### 4. G2 review **Rating:** 5.0/5.0 stars **Reviewed by:** Suraj K. | Project Developer, Enterprise (> 1000 emp.) **Current User:** The reviewer uploaded a screenshot or submitted the review in-app verifying them as current user. **Validated Reviewer:** Validated through LinkedIn **Incentivized:** This reviewer was offered a nominal gift card as thank you for completing this review. **Source: G2 invite:** Invitation from G2. This reviewer was offered a nominal gift card as thank you for completing this review. **Reviewed Date:** July 14, 2024 **What do you like best about OPNsense®?** Good for career growth. It has a large community. **What do you dislike about OPNsense®?** It should be more proactive. Work on more options for the community. **What problems is OPNsense® solving and how is that benefiting you?** Easy to use interface and frequent updates. ### 5. Amazing software with loaded features **Rating:** 5.0/5.0 stars **Reviewed by:** Vandita T. | Consultant, Enterprise (> 1000 emp.) **Validated Reviewer:** Validated through a review partner **Incentivized:** This reviewer was offered a nominal gift card as thank you for completing this review. **Source: G2 invite:** Invitation from G2. This reviewer was offered a nominal gift card as thank you for completing this review. **Reviewed Date:** July 12, 2024 **What do you like best about OPNsense®?** Amazing software with loaded features... Ease of use Easy to implement Easy to integrate with other systems. **What do you dislike about OPNsense®?** nothing as such. Product is really good. **What problems is OPNsense® solving and how is that benefiting you?** OPNsense's focus on security brings unique features such as easy to use one time password authentication for various components. The robust and reliable update mechanism gives OPNsense the ability to provide important security updates in a timely fashion. - [View OPNsense® pricing details and edition comparison](https://www.g2.com/products/opnsense/reviews?section=pricing&secure%5Bexpires_at%5D=2026-09-28+18%3A09%3A51+-0500&secure%5Bsession_id%5D=9d6322d2-3d10-4808-8370-42a38d36f378&secure%5Btoken%5D=324ee44628acda55be902c11c24bdd2830c108284382a75c7de3e16cf4c00b94&format=llm_user) ## OPNsense® Features **Additional Functionality** - Penetration Testing - Alerts/Notifications - Audit Trail - Anti Virus - Vulnerability Scanning - Remote Monitoring & Management - VPN - Behavior Analytics - Reporting/Analytics - Real-Time Notifications - Access Controls/Permissions - SSL Security - Patch Management - Event Logs - Anomaly/Malware Detection - DNS Leak Protection - Third-Party Integrations - Server Monitoring - Real-Time Monitoring - Compliance Management - Network Provisioning - API - Email Alerts - Security Auditing - Intrusion Detection System - Data Visualization - Two-Factor Authentication - Generative AI - Firewalls - AI Copilot - Anti Spam - Threat Response - Activity Monitoring - Risk Alerts - Data Loss Prevention - Single Sign On - Intrusion Prevention System - Secure Login - Policy Management - Activity Dashboard **Administration** - Policy Management - Logging and Reporting - Application Gateway - Concurrent Sessions - Uptime Reporting - Web Traffic Reporting - Compliance Management - Access Management - Incident Management - Audit Management - Remote Monitoring & Management **Agentic AI - Firewall Software** - Autonomous Task Execution - Adaptive Learning - AI/Machine Learning **Functionality** - Virtual Private Network (VPN) - Antivirus - URL Filtering - Availability - IP Filtering - Content Filtering **Monitoring** - Load Balancing - Continuous Analysis - Intrusion Prevention - Intrusion Detection - Intrusion Detection System - Intrusion Prevention System **Generative AI** - AI Text Summarization - Generative AI **Artificial Intelligence - Firewall** - AI Firewall **Additional Functionality** - Spam Blocker - Alerts/Escalation - Role-Based Permissions - Network Monitoring - Visual Analytics - Customizable Reports - Real-Time Analytics - Reporting & Statistics - Anti Spam - Activity Dashboard - Real-Time Monitoring - Real-Time Notifications - Activity Tracking - Hardware Integration - Summary Reports - Alerts/Notifications - Access Controls/Permissions - Real-Time Data - Server Monitoring - Two-Factor Authentication - Log Access - Reporting/Analytics - Multi-Location - SSL Security - Behavior Tracking - AI Copilot - API - Event Logs - Vulnerability Scanning - Risk Alerts - Single Sign On - Dashboard Creation - Monitoring ## Top OPNsense® Alternatives - [Netgate pfSense](https://www.g2.com/products/netgate-pfsense/reviews) - 4.7/5.0 (318 reviews) - [Sophos Firewall](https://www.g2.com/products/sophos-firewall/reviews) - 4.7/5.0 (822 reviews) - [Check Point Next Generation Firewalls (NGFWs)](https://www.g2.com/products/check-point-next-generation-firewalls-ngfws/reviews) - 4.5/5.0 (517 reviews)