You just need to have python installed on your system and run:
python3 nai_to_webui.py '{{some word}} some prompt...'
Or (not on Windows):
chmod +x nai_to_webui.py
./nai_to_webui.py '{{some word}} some prompt...'
The output will look like this:
Here is your WebUi prompt:
(some word:1.1025) some prompt...
So you can just copy the output and paste it in your webui!