Alternatives to CloseTheDoor for all platforms with any license

  • CurrPorts

    CurrPorts is network monitoring software that displays the list of all currently opened TCP/IP and UDP ports on your local computer. For each port in the list...

    Free Windows

    CurrPorts icon
  • Free Port Scanner

    Free Port Scanner is a small, fast, easy-to-use and robust port scanner for the Win32 platform.You can scan ports on fast machines in a few seconds and can perform scan...

    Free Windows

    No features added Add a feature

    Free Port Scanner icon
  • Netactview

    Netactview is a graphical network connections viewer for Linux, similar in functionality with Netstat. It includes features like process information, host name...

    Free Open Source Linux

    Netactview icon


Show 2 less popular platforms

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