Open Port Check Tool – Test Port Forwarding Online for Free

If you’re trying to set up port forwarding for your home or office network, you’ll need to know if your ports are open and accessible from the outside world. In another case, If you’re having trouble connecting to a specific service or device on your network, it’s possible that the necessary port is being blocked by your firewall or router. That’s where the Open Port Check Tool comes in handy. With this free online tool, you can quickly and easily identify your open ports and test your port forwarding setup to make sure everything is working correctly.

How to Use the Open Port Check Tool

Using the Open Port Check Tool is easy. Simply follow these steps:

  1. Navigate to Open Port Check Tool.
  2. Enter the IP address of the device you want to test in the “IP Address” field.
  3. Enter the port number you want to test in the “Port Number” field.
  4. Click the “Check Port” button.

The tool will then scan the specified port and provide you with a status report. If the port is open, you should see a message indicating that the port is open and accessible from the internet. If the port is closed or blocked, you’ll see a message indicating that the port is not accessible or Closed.

Why Test Your Ports?

Testing your ports is an important step in setting up and maintaining your network. By ensuring that the necessary ports are open and accessible, you can ensure that all of your devices and services are able to connect to each other and to the internet.

The Open Port Check Tool is particularly useful for testing port forwarding setups. If you’re using a router to connect to the internet, you’ll need to forward specific ports to specific devices in order to allow them to receive incoming connections. If your port forwarding setup is incorrect, you may experience connectivity issues.


If you need to test your port forwarding setup, or simply want to ensure that your network is functioning correctly, the Open Port Check Tool is an excellent resource. By providing a simple, easy-to-use interface and fast, accurate results, this tool can help you troubleshoot connectivity issues quickly and effectively.

Don’t forget to check out our other free network tools like Online Ping, Online Traceroute, Online NMAP, Reverse DNS Lookup, and DNS Lookup.