Free Tool: Check Open Ports


Check open ports on workstations and show TCP and UDP port numbers open for incoming connections









Action1 Customers
Check Open Ports  
Check Open Ports
Check open ports on workstations and show TCP and UDP port numbers open for incoming connections


This free open port scanner tool performs a check for open ports on all Windows workstations locally. An open port (also called a listening port) indicates a slot accessible via TCP of UDP protocol configured to accept incoming packets. For example, if a web server was running on a computer, the default HTTP and HTTPS ports (80 and 443 respectively) would be open.

Action1 can routinely test if certain ports are open and act as a simple open port check tool that is managed from the Cloud, but the actual port scanner tool runs inside your network. Think of it as a command to check open ports in Windows that can be launched simultaneously on multiple computers without using any PowerShell scripts or other standalone tools.

Sign-up for Action1 Free Edition to install/uninstall software and patches, receive real-time alerts and view instant data from your endpoints, or run live or scheduled queries with the ability to export to CSV or Excel. Action1 Endpoint Security Platform is entirely SaaS, with online web interface (no management tools to install) and it has zero cost for basic functionality. Running in the Cloud, Action1 discovers all of your endpoints in seconds and you can query your entire network in plain English.






Hundreds of Organizations Worldwide Use Action1 Platform


Midwestern Energy Company

Being a part of the national energy grid infrastracture puts a lot of cybersecurity responsibilites on our company. Action1 helps to implement it.

Midwestern Energy Company

European Construction Conglomerate

Action1 plays a critical role in our cybersecurity strategy. The ability to instantly understand what is happening on your endpoints is priceless.

European Construction Conglomerate

City Government in Georgia

Our city prides on being one of the most digititally transformed cities in the region. Without Action1, the risks of managing the infrastructure were too high.

City Government in Georgia




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