You can preview your demos in a couple of different ways:
a. If you’ve just created a demo and published it, on the builder page, you’ll see the 👁️ icon. Click that and a preview will open up just like it would if your client or prospect sees it
b. If you are on the /demos page, you can hover over the demo you’d like to preview, click the 👁️ icon and a preview of that demo will open up