There was a download of xSupplicant 2.2.3.553 on the developer's website when we last checked. We cannot confirm if there is a free download of this software available. The program lies within Development Tools, more precisely Help.
This free program was originally designed by Arunesh Mishra. The most popular versions of the tool 2.2 and 2.1. According to the results of the Google Safe Browsing check, the developer's site is safe. Despite this, we recommend checking the downloaded files with any free antivirus software. The default filename for the program's installer is XSupplicantUI.exe.
From the developer:
Open1X is an open source implementation of the IEEE 802.1X protocol. This project includes support for the supplicant, while other projects (e.g., FreeRADIUS) provide support for the authentication server. The Supplicant is usually a laptop or other ( wireless) device that requires authentication.
xSupplicant stands as the main product of open1x. It is an open-source tool created for server authentication purposes.
You may want to check out more software, such as ScanRouter Administration Utility, Mihov ASCII Master or VisualText, which might be similar to xSupplicant.