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Best FortiGate Alternatives ranked by AI · updated May 2025

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FortiGate is a next-generation firewall that provides high-performance network security with advanced visibility, threat detection, and automated response capabilities.

Price: Price varies based on model and features 🎯 fortinet.com/products/next-generation-firewall

Top 6 FortiGate alternatives

pfSense is an open-source firewall and router software based on FreeBSD. It provides advanced features and flexibility for network security and routing.

Free (Community Edition), Paid support options available

5 OPNsense logo

OPNsense

Deciso

OPNsense is an open-source firewall and router platform based on FreeBSD, administered through a web interface. It is aimed at network administrators...

Pros

  • Offers a far richer web interface than Advanced Policy Firewall
  • Includes VPN, routing, reporting, plugins, and intrusion-prevention features
  • Well suited to dedicated perimeter firewalls and small business networks

Cons

  • Runs as a separate firewall appliance rather than a lightweight Linux host tool
  • Requires dedicated hardware or a virtual machine
  • More resource-intensive than Advanced Policy Firewall

Free; paid support and hardware available

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