I need help to build a simple website builder

Heyy,

I would like to make a very simple website builder in order to make front-end websites only.

Here is the problem: I want to have 2 webpages, set.html, and index.html (the webpage that the user will make).

In set.html, I want the user to fill in inputs such as "title of the webpage", "content of the webpage", "picture of the webpage", "author of this webpage".

Hence, he filled in these inputs, I would like what he filled in set.html to appear on a web page (index.html).

I thought to do something like :

<h1></h1>

And between these, I want to put the value that the user filled but that I don't know how to do...

Is it possible to do that? How can I do that?

Thanks for your attention, have a good day ;)

Santosh

P.S : I have an intermediate level in web dev