I want to tunnel only 1 folder/directory. Can I achieve this with ngrok?
I'm using xampp and most of my projects are WordPress websites.
I don't want the person with the link to see all my other folders.
Basically I'm using ngrok to show the projects to my clients and I want to show only specific folders.
This is quite late for you, but this might help others.
I came across this same situation and I found the way.
Basically you need to create virtual host as @TheDeadMedic have suggested and then you can use it for ngrok.
I found this tutorial for wamp, so you can get idea for XAMPP from it.
P.S. I'm not promoting this tutorial.