Alternatives to NetDefender for all platforms with any license

  • 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...

    Freemium Windows

    No features added Add a feature

    ZoneAlarm Free Firewall 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...

    • Discontinued Last version, 6.0.0.74, was released on September 29, 2009. It can be still downloaded from Download.com.

    Free Windows

    No features added Add a feature

    PC Tools Firewall Plus 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...

    • Discontinued On October 10, 2005 Symantec Corporation acquired Sygate Technologies, so Sygate Personal Firewall has been replaced by an advanced "Smart Firewall," available in Symantec’s Norton Internet Security.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.

    Free Windows

    No features added Add a feature

    Sygate 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...

    • 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.

    Free Windows

    SoftPerfect Personal Firewall icon
  • NoRoot Firewall

    Firewall WITHOUT ROOT. Host name/domain name filtering, simple interface, fine-grained access control and no suspicious permissions on the firewall app itself.

    Free Android

    No features added Add a feature

    NoRoot Firewall icon
  • 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...

    • Discontinued Last modification date: 10/25/05. See https://www.coresecurity.com/grid/index-open-source-tools

    Free Open Source Windows

    No features added Add a feature

Platforms

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