Alternatives to Guarddog for all platforms with any license

  • Comodo Firewall icon

    Comodo Firewall

    Comodo Firewall Pro - Secure your system against internal attacks such as Trojan viruses / malicious software and external attacks by hackers. Safeguard your personal data through a simple user friendly single click interface offering...

    Free Windows

    No features added Add a feature
  • TinyWall icon

    TinyWall

    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:...

    Free Windows

    No features added Add a feature
  • Gufw icon

    Gufw

    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...

    Open Source Linux

  • ZoneAlarm Free Firewall icon

    ZoneAlarm Free Firewall

    ZoneAlarm Free Firewall blocks hackers from infiltrating your home PC by hiding your computer from unsolicited network traffic. By detecting and preventing intrusions, ZoneAlarm Free Firewall keeps your PC free from viruses that slow...

    Freemium Windows

    No features added Add a feature
  • PC Tools Firewall Plus icon

    PC Tools Firewall Plus

    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. By monitoring...

    Free Windows

    No features added Add a feature
    • Discontinued Last version, 6.0.0.74, was released on September 29, 2009. It can be still downloaded from Download.com.
  • Filseclab Personal Firewall icon

    Filseclab Personal Firewall

    Filseclab Personal Firewall Professional Edition is one of the most important software of Filseclab, it is very easy to use and also very powerful. It can provide more secure protection for your PC, and it is FREE. It can block...

    Free Windows

    No features added Add a feature
  • Firestarter icon

    Firestarter

    Firestarter is an Open Source visual firewall program. The software aims to combine ease of use with powerful features, therefore serving both Linux desktop users and system administrators. We strongly believe that your job is to...

    Open Source Linux

    No features added Add a feature
  • Nufw icon

    Nufw

    NuFW is a GPL extension to Netfilter (that is Linux firewall). It adds identity-based filtering, i.e. it is possible to create firewall rules dependent on the user. NuFW components: nutcpc: UNIX command client client ...

    Open Source Linux netfilter

  • DefenseWall icon

    DefenseWall

    DefenseWall is a sandboxing-style personal firewall solution that wins when your anti-virus fails. DefenseWall is based on a sandboxing approach that uses rights restrictions and partial virtualization. What this means in simple terms...

    Commercial Windows

    No features added Add a feature
  • FortKnox Firewall icon

    FortKnox Firewall

    FortKnox Firewall is personal firewall solution that allows you to protect a PC against hacker attacks, trojans, spyware and internet threats. It has built-in Intrusion Prevention System and SPI technologies for extended user...

    Commercial Windows

    No features added Add a feature
  • Sygate Personal Firewall icon

    Sygate Personal Firewall

    Sygate Personal Firewall is a bit old but good firewall for Windows. It uses very small amount of system resources and is quite robust. The project is now abandoned because Symantec Corporation, on October 10, 2005, acquired...

    Free Windows

    No features added Add a feature
    • Discontinued On October 10, 2005 Symantec Corporation acquired Sygate Technologies, so Sygate Personal Firewall has been replaced by an advanced "Smart Firewall," available in Symantec’s Norton Internet Security. Sygate Personal Firewall can still be downloaded from Tucows.
  • Armor2net personal firewall icon

    Armor2net personal firewall

    Armor2net personal firewall software stops hackers, data thieves, and protects your PC from Internet-borne threats. Armor2net firewall can meet your requirements for Internet security and Internet privacy. This firewall monitors...

    Commercial Windows

    No features added Add a feature
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  • SoftPerfect Personal Firewall icon

    SoftPerfect Personal Firewall

    The SoftPerfect Personal Firewall is a free network firewall designed to protect your PC against attacks from the Internet or via a local area network. SoftPerfect Personal Firewall offers customizable security using user-defined...

    Free Windows

    • Discontinued The program is no longer available on the official website. Last version, 1.4.1, released on August 01, 2008, can be still downloaded from Softpedia.
  • Wallix Pro Firewall icon

    Wallix Pro Firewall

    Wallix Pro Firewall prevents intruders from accessing your computer and that’s the main objective for a computer firewall. It automatically detects and blocks attacks through a comprehensive examination of all inbound and outbound...

    Free Windows

    No features added Add a feature
  • InJoy Firewall icon

    InJoy Firewall

    With InJoy Firewall™ 4.0 you can say good-bye to old-generation Firewall solutions that were difficult to implement, manage and measure — InJoy Firewall™ is different... This multi-purpose Firewall readies you for the future...

    Commercial Windows Linux

    No features added Add a feature
  • Core Force

    CORE FORCE is a free comprehensive endpoint security solution for Windows 2000 and Windows XP systems. CORE FORCE provides inbound and outbound stateful packet filtering for TCP/IP protocols using a Windows port of OpenBSD's PF...

    Open Source Windows

    No features added Add a feature

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