AppNetworkCounter

If you suspect that certain software applications gained Internet access without your permission or if you just want to find out which running programs are the most demanding when it comes to network traffic, you can use AppNetworkCounter.

It's a small-sized tool capable of monitoring active programs to determine the amount of TCP or UDP bytes they send and receive. It reveals a multitude of information about each entry in the list, giving you the possibility to export everything to file.

All currently running processes are detected at startup automatically so you don't have to trigger anything to make this happen. Readings are shown in real-time for the sent and received bytes, packets and speed, along with bytes sent and received via IPv4.

More details are shown for each process in the list, including the application's full path, product name and version, file description, and company name. The information of any selected items can be copied to the clipboard or saved to file in TXT, JSON, CSV, HTML or XML format.

As far as configuration settings are concerned, you can change the default display unit for the speed and bytes counter, include the activity of localhost addresses in the monitor, show grid lines, hide the columns you're not interested in, as well as reset the selected counters.

AppNetworkCounter doesn't have a system implemented to notify you when a particular program has surpassed or is about to surpass the limit of allowed bytes, nor can it limit the amount of network bytes used by applications. However, it's useful for helpinh you make your own evaluations concerning resource-demanding programs after monitoring them for a while. Besides, it's portable and free to use.