J-Link control panel
The J-Link control panel is a browser user interface based on emWeb.
Due to the interface being handled by the browser, the web server does not depend on the operating system nor the host, making it accessible from any device with a browser. The interface is generated by the web server on your machine and can be made available over the Internet.
Therefore there's no need to install or download any software at all.
Furthermore, this enables other software, e.g. Embedded Studio, to include it inside of its own GUI.
The J-Link control panel runs on the J-Link Built-in web server and is available for all J-Links.