FortKnox Firewall AlternativesFirewalls and other similar apps like FortKnox Firewall

Apps similar to FortKnox Firewall include TinyWall, which is free and open source. Other options are Gufw, Windows Firewall Notifier, Windows 11 Firewall Control and Privatefirewall. You can choose from more than 10 Firewalls like FortKnox Firewall for Windows, Linux, Android, iPhone and self-hosting.

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Alternatives
FortKnox Firewall alternatives page was last updated

Alternatives list

  1. TinyWall icon
     64 likes

    TinyWall is a free software to harden and control the advanced firewall built into Windows Vista, Windows 7 and Windows 8. TinyWall includes a combination of features that sets it apart from both commercial and freeware firewalls: TinyWall does not annoy you with popups at all...

    37 TinyWall alternatives

    Cost / License

    Application type

    Since

    • Since 2012

    Platforms

    • Windows
    Good alternative?
     
  2. Gufw icon
     53 likes

    Gufw is an easy, intuitive way to manage your Linux firewall. It supports common tasks such as allowing or blocking pre-configured, common p2p, or individual ports port(s), and many others! Gufw is powered by Uncomplicated Firewall (ufw).

    Cost / License

    Application type

    Since

    • Since 2009

    Platforms

    • Linux
    • Python
    Good alternative?
     
  3. Windows Firewall Notifier (WFN) extends the default Windows embedded firewall behavior, allowing to visualize and handle incoming or outgoing connections.

    28 Windows Firewall Notifier alternatives

    Cost / License

    Application type

    Since

    • Since 2011

    Platforms

    • Windows
    Good alternative?
     
  4. Enables per-application network monitoring with instant notifications, detailed logging, multiple predefined security zones, blocking of zero-day malware and telemetry, support for portable use, remote management, IPv6 networks, and flexible LAN connectivity settings.

    28 Windows 11 Firewall Control alternatives

    Cost / License

    • Free
    • Proprietary

    Application type

    Since

    • Since 2010

    Platforms

    • Windows
    Good alternative?
     
  5. Privatefirewall icon
     26 likes

    This personal firewall and intrusion detection application provides comprehensive online security. It constantly monitors your PC for intrusion and reports any findings, so you can take the appropriate action.

    26 Privatefirewall alternatives

    Cost / License

    • Free
    • Proprietary

    Application type

    Since

    • Since 2010

    Alerts

    • Discontinued

    Platforms

    • Windows
    Good alternative?
     
  6. Provides two-way firewall protection by blocking unauthorized network access, detecting intrusions, hiding devices from threats, stopping viruses, spyware, and data theft, offering real-time alerts, customizable rules, and simple setup with light system impact.

    Cost / License

    • Freemium
    • Proprietary

    Application type

    Since

    • Since 2009

    Platforms

    • Windows
    • Android
    • iPhone
    Good alternative?
     
  7. EasyFirewall icon
     1 like

    Perfects the Windows Firewall offering additional security. Get the most out of your Windows firewall, create new security rules for your online applications, alerts you to anomalies with real-time protection.

    Cost / License

    • Paid
    • Proprietary

    Application type

    Since

    • Since 2025

    Platforms

    • Windows
    Good alternative?
     
  8. CacheGuard Gateway is a free, open-source network security appliance for startups, growing businesses, and SMEs/SMBs that need enterprise-grade protection without the complexity or cost.

    Cost / License

    • Free
    • Open Source

    Application type

    Since

    • Since 2016

    Platforms

    • Self-Hosted
    • VMware vSphere Hypervisor
    • VirtualBox
    • Proxmox Virtual Environment
    • Microsoft Hyper-V Server
    Good alternative?
     
  9. Bouncer App icon
     1 like

    Bouncer is an application to help you choose the correct firewall zone for wireless connections. When you connect to a new network, Bouncer will open a window prompting you for what kind of network (eg home, public, work) it is.

    Cost / License

    Since

    • Since 2025

    Platforms

    • Linux
    • Flathub
    • Flatpak
    Good alternative?
     
  10. Karma Firewall app lets you take control back of your phone and block internet traffic to and from specific apps. This is a simple yet powerful firewall with an easy to use intuitive GUI which allows you to protect your sensitive data.

    Cost / License

    Application type

    Since

    • Since 2023

    Platforms

    • Android
    • F-Droid
    Good alternative?
     
  11. PC Tools Firewall Plus is a powerful free personal firewall for Windows® that protects your computer by preventing unauthorized users from gaining access to your computer through the Internet or a network.

    Cost / License

    • Free
    • Proprietary

    Application type

    Since

    • Since 2010

    Alerts

    • Discontinued

    Platforms

    • Windows
    Good alternative?
     
  12. NethSecurity icon
     1 like

    All the functionalities of a modern Next-Gen firewall in few clicks: MultiWAN, Deep Packet Inspection, VPNs, Threat Protection.

    Cost / License

    • Free
    • Open Source

    Application type

    Since

    • Since 2024

    Platforms

    • Linux
    Good alternative?
     
12 of 22 FortKnox Firewall alternatives