On the official website we will have to put a real email address, because that is where we will receive the license key to activate the free version of the software:

In order to download and use this program we will have to register completely free of charge, this software is compatible with Windows Vista, Windows 7, Windows 8, Windows 2008 and also Windows 10. Another feature is that we can manually save the capture file for later treatment, however, we have many limitations that the paid version does allow us: automatic update, supports multiple network adapters simultaneously, supports TAP, we can export the data we capture, perform a TCP port scan, customize reports of all the information collected, see the DoS and ARP attacks and many other characteristics that you can find in the following table: They are only available in the paid version «Enterprise». The free version of Capsa Free It will allow us to monitor a total of 10 IP addresses of the local wired network for 4 hours in a row, we will be able to monitor only the wired interfaces, because we have the possibility of monitoring the WiFi connections. The paid version is worth $ 995 and we can download a “trial” version for 30-day trials, in this way, we can see all the features without paying anything and see if it is worth it.

We can use the free version without any problems, renewing the license key every four months to continue using the software. Colasoft has two versions of this Colasoft Capsa program, one is completely free, but with limited functionality, and the other is paid but has all the available features.

Capsa free