PortScan

Looking for a simple way to check which ports are active on your computer or network? PortScan is a free, user friendly tool that helps you locate, monitor, and manage all your open ports whether they're static or dynamic. It works with various devices like routers, hubs, and network adapters, making it a handy utility for both home users and IT enthusiasts.

One of the standout features of PortScan is its ability to quickly scan your network and identify all connected devices. It automatically pulls details like IP addresses, service names, MAC addresses, and even username and password info for detected services. The tool uses up to 100 threads at once, which means it can handle large IP ranges without slowing down. Best of all, it’s completely free to download and use.

PortScan is compatible with a wide range of Windows operating systems, including older versions like XP and NT, as well as newer releases. It presents scan results in an easy to read tree format, with status icons showing whether a port is open or closed. You can click on any port to view more details or even close it directly from the interface handy for troubleshooting or tightening security.

You can grab PortScan from my blog, where I’ve also included setup instructions to help you get started. If you try it out, feel free to share your thoughts or suggestions on the PortScan website I’d love to hear how it works for you. You can also subscribe to updates on the news page to stay in the loop about new features. For quickly finding open or closed ports on Windows, PortScan is one of the fastest options out there.