NetWorx is a simple but effective tool for monitoring your network bandwidth usage. Sounds a little dull, but it's surprising just how useful this little program can be.

If you've ever wondered how fast your internet connection is, for instance, then NetWorx will let you know. And because it's monitoring all the time you'll see how speeds might vary throughout the day, which will give you a better idea of when it's best to download large files.

The program can also produce daily, weekly and monthly reports on your bandwidth use, both for the entire system and individual users, making it very easy to see who's using your bandwidth. If it turns out your kids are spending too much time online then you can use NetWorx to set them daily, weekly or monthly quotas.

The reports are also useful for picking up suspiciously heavy network activity, that might indicate a malware infection (or maybe someone making illicit use of your wireless router).

NetWorx is equally handy when tracking local networking issues. You can use the speed monitor to check the performance of your wireless network, for instance, while built-in graphical troubleshooting tools like ping and trace route will help you diagnose problems. And because this version is portable, there's no need to install it - just copy the program to a USB flash drive, and use it wherever you like.

Note this is the portable version of NetWorx.