Any real time editor on Wordpress?

I'm talking about something like this https://html5-editor.net/ where I can see and edit the code if I want to without changing tabs or pressing Edit, but I can also write freely with TinyMCE.

You mean, something like this?

If that's not it, please give us more info.. like, you are editing from backend, or frontend?

It doesn't matter if the editing is front or back, I just want to see the code of what I'm writing in TinyMCE, but also as you can see in my example, to have the ability to also write code if I want to.

And they're side by side, allowing to see in real time what you're doing.