Fortinet FortiGate — enterprise leader
Dedicated ASIC hardware (FortiSP5/FortiSP6) delivers 100+ Gbps throughput. Integrated SD-WAN, FortiGuard threat intelligence, FortiAnalyzer for SIEM. Per-device + per-feature licensing.
Pros: performance, 24/7 support, FortiAnalyzer/FortiManager integration. Cons: expensive licensing, vendor lock-in.
pfSense — open-source veteran
FreeBSD-based. CE (free) and pfSense Plus (Netgate paid). Mature web UI. IPsec/OpenVPN/WireGuard VPN. CARP HA, multi-WAN.
Pros: mature, well-documented, large community. Cons: Netgate made Plus closed-source, single-thread throughput limit (BSD).
OPNsense — post-Netgate alternative
pfSense fork from 2015, European community development (Deciso). Quarterly releases. Modern UI, clean plugin system (Suricata, ZeroTier, NetData, native WireGuard).
Pros: 100% open-source, predictable releases, better UI. Cons: smaller community than pfSense.
Recommendation by segment
- Enterprise (1000+ users): FortiGate with FortiAnalyzer
- Mid-market (100-1000): FortiGate or OPNsense on dedicated hardware
- SMB (under 100): OPNsense or pfSense CE on NUC/Protectli
- Home lab: OPNsense (better UI for learning)