How to know if a port is open in Windows 10

Knowing if a port is open is easier than you think in Windows, this is a security check very convenient, as it can alert you that there is malicious apps with permissions that you have not given or that you are simply not interested in maintaining. In Linux you can check if there are open ports with the mnap command and in Windows, it is also possible, the same commands are not used, but you can access the information and check if there are any ports open.

It is very convenient to review this information from time to time, especially if the computer is used for work or intensively. You can ensure that everything is in order and there are no security flaws. Checking it is more than simple and the best thing is that you will not have to install any program on your computer. We show you several web pages that will help you check for open ports in Windows environments. In addition, you will discover how to do it with the netstat commanda safe, simple and fast option.

Check if there is an open port with Netstat

With Netstat you will be able to know what ports we have open in Windows, as well as their status at that moment. In order to get the list you will have to search Symbol of the system or CMD in the Windows search engine, when opening the console you will have to write the command “netstat -an”, without including the quotes.

If you follow these steps, you can view the different ports and their status within the same console. Now it may seem like a complicated process, but in a couple of clicks you will have it ready. To close this operation you will only have to close the advantage of the Symbol of the system.

If the netstat command does not quite fit what you need, you can perform this same check through several web pages, below, we show you two of the most used. You should keep in mind that these will not ask you to download any program on your computer.


This method is so simple that it is the favorite of many, it is very intuitive and visual, but you will have to have an active internet connection. We tell you the step by step to check the available ports:

  • Open a window of your trusted browser, it doesn’t have to be a specific one.
  • Find the page
  • Access your section Port Scanners

In this section you will find several interesting functions to check the ports of your computer, some of them are:

  • Scan specific ports of online games, applications or server.
  • Scan a specific number of ports in Windows
  • Scan a full port range.

You’ll be able to check open ports in Windows and maintain security more visually than with the Netstat command. You can take a look and try the functionalities that best fit you and your computer. By being able to modulate the ports to check and their number, it will be easier to check the status of the device without having to check a long list of active ports in Windows.

This website has multiple functionalities and among them, is that of scan ports. Once you try it, you will be able to verify that it is simple and functional in equal parts.

We leave you a step by step to be able to review it in this program:

  • Open your trusted browser and search
  • click on Use my IP address
  • In ports to scanChoose The most frequently used ports.
  • Then click on Start scan.

This web tool scans for open ports on a computer using the nmap command, so you can see the entire list. Or if you prefer, you can access the information of a specific port, to know your status. This is a versatile and complete tool, it can also be used to know what ports does a domain have open specifically, for this, you will only need the URL.

Doing these security checks from time to time can help you avoid unwanted connections with your device. You will be able to detect it quickly and change the status of the ports at any time. The most common and most recommended option is the first we have seen, you do not need an internet connection and it will not take more than a couple of minutes. But if you see that this does not work for you, the other options are safe and the data on your computer will be kept safe.

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