While an official "Version 13" does not exist in the main Netcat repository, users looking for this functionality generally turn to these types of tools:
The Netcat GUI 1.3 Verified application has been deemed stable, secure, and functional, and is ready for use in production environments. netcat gui 13 verified
The development and use of a GUI for Netcat aim to make its functionalities more accessible. A GUI can simplify complex operations, making it easier for less experienced users to leverage Netcat's capabilities. While an official "Version 13" does not exist
Establishing remote shells for troubleshooting—or, in unauthorized hands, for malicious access. The Evolution of the GUI in unauthorized hands