Monitor your Internet Bandwidth with Cucusoft Net Guard

Martin Brinkmann
Jul 23, 2012
Updated • Feb 10, 2014
Software, Windows, Windows software

Monitoring the bandwidth usage of a computer system can be beneficial in several ways. You can use the data to make sure you stay under a monthly limit, which may be very helpful if you are on a limited plan that is only providing you with a set amount of free traffic per month. A bandwidth monitor furthermore can also be helpful when you are auditing your PC, for instance to find out which programs and services go online.

Cucusoft Net Guard is a free program for the Windows operating system. You can download it freely from the developer website but need to enter an email address during first run to receive a serial number that you need to enter to use the program at all.

Once that is out of the way you will notice the small upload and download realtime widget that is added just above the Windows system tray area. A click on the widget expands it displaying statistics about the day's Internet usage. This includes the overall bandwidth used, the upload and download bandwidth, and the programs that top the upload and download bandwidth statistics for that day.

Note: Pay attention to Netguard's installation dialog, as you may find third-party offers included in it that are not necessary for the program's core functionality. If you do not want those installed, make sure you select decline or skip to do so.

cucusoft net guard

You can hide the floating window and only use the main application window instead which you can open from the operating system's system tray area.

Here you can access information in the following five tabs:

  • Net usage displays the bandwidth usage over time, as well as how much of a month's bandwidth limit you have already used up. You can define Internet limits in the program settings. The graph can display bandwidth usage by week, month or year.
  • Net monitor displays all processes and services that are or have used the Internet connection in one way or the other. Each program is listed with its name, the current upload and download speed, as well as the traffic that it has accumulated in the current session. A right-click on a program displays options to kill the process directly.
  • Connections displays a list of ports that are currently open on the computer.
  • Speed test runs a benchmark that is used to determine the computer's download speed. It is fairly limited in comparison to other services such as Speed Test, Down Tester, Internet Auto Speed Tester or
  • Statement displays a computer's bandwidth usage in a pdf report.


If you are interested in the monitoring aspect only, then Net Guard is an excellent program for that job. It's memory is definitely on the high side though and alternatives like Netmeter or Open Monitor may be more suitable for low-memory systems.

If you want to control the upload and download speed of a process as well, then you should take a look at NetBalancer Free instead which can do exactly that.


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  1. Martin said on March 12, 2023 at 3:05 pm

    An even quicker way to open Task Manager is by pressing Ctrl+Shift+Esc.

  2. archie bald said on March 12, 2023 at 4:32 pm

    Win+Pause used to be the goto shortcut for me since… W95… Ms recently hijacked it and you now get Sysinfo. Device manager is still accessible this way: the second to last link at the bottom.

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