The Best 12 Free Port Scanner Alternatives

  • Angry IP Scanner icon

    Angry IP Scanner

    Angry IP Scanner (or simply ipscan) is an open-source and cross-platform network scanner designed to be fast and simple to use. It scans IP addresses and ports as well as has many other features.

    Free Open Source Mac OS X Windows Linux Java

  • CurrPorts icon

    CurrPorts

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

    Free Windows

  • Advanced Port Scanner icon

    Advanced Port Scanner

    Advanced Port Scanner is a fast and free software for port scanning. It will allow you to quickly find all open ports (TCP and UDP) and detect versions of programs running on them.

    Free Windows

  • Dipiscan icon

    Dipiscan

    Dipiscan is a free IP scanner that allows you to remotely retrieve information about machines on your network using a clear and ergonomic interface (as well as a command-line mode) .

    Free Windows

    Portable Network Discovery
  • Netactview 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

  • Bopup Scanner icon

    Bopup Scanner

    Bopup Scanner is a LAN Scanner which resolves multiple network-specific parameters and displays all the active nodes/systems connected over the network along with useful...

    Free Windows

  • Proc Net Monitor icon

    Proc Net Monitor

    Proc Net Monitor is the FREE software to monitor & analyze the Network activity of all running Process on your system. It shows all open network Ports (TCP/UDP)...

    Free Windows

  • MyLanViewer Network/IP Scanner icon

    MyLanViewer Network/IP Scanner

    MyLanViewer Network/IP Scanner is a powerful Netbios and Network/IP scanner for LAN, whois and traceroute tool, remote shutdown and Wake-On-Lan manager, LAN messenger...

    Commercial Windows

  • CloseTheDoor icon

    CloseTheDoor

    CloseTheDoor indentifies all the listening ports TCP/UDP over IPv4/v6 and the associated program files. This will help you to detect security holes and close backdoors...

    Free Open Source Windows