PortExpert – Shows which processes is using your network connection

Port Expert is a free portable utility to know which processes on your Windows PC is using the network connection. This tiny tool which is less than 500Kb in size can be a useful utility to dig out the culprit program that is slowing down or jamming your network.



By default view, PortExpert shows the TCP/UDP protocols that are accessing network, but you do get option to show local connections and system processes too by clicking on the buttons located at the bottom of program’s interface. And if that’s enough for your inspection, you can use the “Freeze Time” option for the real-time view. It supports automatic identification of related service : FTP, HTTP, HTTPS etc.. Other features include integrated Whois lookup and web search for process names using Google search engine.

PortExpert - Showing All Processes using Internet

PortExpert – Showing All Processes using Internet

All-in-all, PortExpert is a nice little handy standalone utility that monitors all applications using the Internet, which might be useful in identifying potential threats to your system like spyware and adware.

PortExpert Review
  • Installation/Portability
  • User Interface
  • Features
  • Performance


Light weight and portable version availability.
Capability to show/hide loopbacks.
Capability to show/hide system level processes.
Identifies remote servers using WhoIs service.

Can't flag malicious process (You have to identify it yourself).
Program's interface could be better.
Developer's website: KC Software
Works with Windows 8/7/Vista/XP.
Download PortExpert Installer
Download PortExpert Portable

User Rating: 5.0 (1 votes)

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Kiran Kumar

Hi there! Kiran Kumar is an Engineer by profession, and loves blogging primarily on Microsoft Windows operating system and also enjoys reviewing software and products. Currently, he is exploring Windows 10 and you will see a lot of articles on know-how about it. When he is not writing for TWP, he enjoys time with his Family, listens to lot of music, enjoys Biking, and occasionally plays racing games on Xbox One.