How to download wpt desktop tool

I am new to webpagetest tool. Where can I download the wpt desktop tool to execute the script? Please suggest me some references to start working on UI performance.


Sorry, the desktop version of the tool was deprecated years ago. The best way to debug scripts is to limit yourself to “exec” and “execAndWait” commands (as well as navigate) and use the browser dev tools to debug the javascript to get it to do what you want.