Ask HN: How can I build web apps without knowing how to code them?

Does anyone know of a resource which allows a person to build web apps without knowing how to code them? Like Google's App Inventor allows people to build (somewhat basic) Android apps with knowing the code, I'd like to find something I can use to build a web app I would like to have for my personal use.

It would be great if it was WYSIWYG or close to that.

I assume it may be somewhat limited, that's fine.

It would be great if I could edit the output with my own code down the line when I learn how to do so.

Hiring someone to do this for me would defeat the purpose. Half the reason I want this is to have something to play with and experiment with.

I have been learning to code on the side. I'd like to learn how to build web apps and am learning how to make Android apps. It is going to take a while and I am fine with that. However I am impatient and would like to find something that allows me to take a bit of a short cut in a way and allow me to play with web app creation in a basic way while I simultaneously learn how to do it the right way.

Thanks!