OpenMSP
pfSense logo

pfSense

Network Management and Monitoring

Open Source
Paid Plans
Free Tier
Paid Plans
Self-hosted
OpenMSP Score
84
99
Reddit Impact Score
Github Score
280M
5KStars
1KForks
41KCommits
Apache License 2.0License
Mar 31, 2026Last commit

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pfSense is a free, open-source firewall and router distribution based on FreeBSD that has been trusted since 2004. It provides comprehensive network security solutions including stateful packet filtering, VPN support (IPsec, OpenVPN, WireGuard, L2TP), load balancing, traffic shaping, high availability, and intrusion detection/prevention. With over 7 million installations worldwide, pfSense has successfully replaced major commercial firewalls from vendors like Cisco, Check Point, Juniper, and SonicWall. The platform features a web-based interface for configuration without requiring command-line knowledge, making it accessible to network administrators of varying skill levels. pfSense is particularly popular among MSPs for site-to-site VPNs, remote access solutions, and client network protection. Available in both Community Edition (CE) and pfSense Plus editions, with the Plus version offering additional features and official support from Netgate.
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Key Features

Stateful Firewall

Enterprise-grade stateful packet inspection with advanced rule management and granular traffic control

Multiple VPN Protocols

Built-in support for IPsec, OpenVPN, WireGuard, and L2TP VPN with site-to-site and remote access capabilities

Traffic Shaping & QoS

Advanced traffic shaping, quality of service (QoS), and bandwidth management using ALTQ or Limiters

High Availability

CARP-based failover and state synchronization for enterprise-grade redundancy

Multi-WAN Support

Load balancing and failover across multiple WAN connections with automatic gateway monitoring

IDS/IPS Integration

Integration with Snort and Suricata for intrusion detection and prevention capabilities

Pros and Cons

Pros

Open Source & Cost-Free

Completely free Community Edition with no licensing costs, backed by active community and commercial support options available

Feature-Rich Platform

Enterprise-grade features rivaling commercial firewalls including VPN, firewall, routing, HA, and IDS/IPS

Proven Reliability

Over 7 million installations worldwide since 2004, trusted by businesses, government agencies, and educational institutions

Active Development

Regular updates and active development by Netgate with strong community contributions

Hardware Flexibility

Runs on commodity hardware, virtual environments, or purpose-built Netgate appliances

Cons

Learning Curve

Requires networking knowledge to configure properly - not ideal for beginners without firewall experience

GUI Performance

Web interface can be slow on lower-spec hardware, especially with many rules or packages

CE vs Plus Split

Some newer features are exclusive to pfSense Plus, creating a two-tier ecosystem

Limited Cloud-Native Features

Not designed for cloud-native environments - better suited for traditional networking

Feature Comparison

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Frequently Asked Questions

Getting Started

OpenMSP is The MSP Knowledge Hub & Community Platform designed specifically for Managed Service Providers seeking to optimize their technology stack, reduce vendor costs, and discover open-source alternatives. We combine a comprehensive vendor directory, open-source solution catalog, and integrated community discussions to help MSPs make informed decisions.
Yes, completely free. Browse vendors and tools, read comparisons, and join community discussions - no cost, no registration required. OpenMSP is community-supported and focused on empowering MSPs to reduce costs and improve operational efficiency through open-source technology.
We help MSPs identify cost-effective alternatives to expensive commercial solutions, provide transparent vendor information, and connect you with proven open-source alternatives. Our platform enables MSPs to make informed decisions about their technology investments.
No account required for browsing vendors, reading comparisons, or accessing community content. Creating a free account with SSO (Microsoft, Google, or Slack) allows you to participate in discussions and save your favorite tools.

Platform Information

OpenMSP is currently community-supported. We focus on providing value to the MSP community first. Any future monetization will keep the core platform free for MSPs while maintaining our independence and commitment to unbiased information.
We focus exclusively on MSP needs with transparent vendor information and open-source alternatives. No vendor partnerships or sponsored listings - just honest, community-driven information to help MSPs make better technology decisions. Our biggest value is our community where MSPs help each other with questions, setup guidance, and sharing real-world experiences.
Our community of MSP professionals helps verify and update information. We also maintain direct research on tools and vendors to ensure accuracy. Community members can report outdated information, and we work to keep everything current.
OpenMSP was founded by Michael Assraf, who has extensive experience in the MSP industry and product leadership. As the former CEO & Founder of Vicarius, Michael grew a startup from $0 to $9M ARR with 500+ customers and deep experience working with MSPs, partners, and fundraising. OpenMSP represents his commitment to empowering the MSP community through better technology decisions and cost optimization.

Open-Source Tools & Alternatives

We assess tools based on active development, community size, documentation quality, production deployments by MSPs, and available support options. Tools must meet strict criteria for reliability and enterprise readiness.
Many open-source projects offer multiple support options including community forums, commercial support from vendors, professional services, and our community discussions where experienced MSPs share implementation guidance.