www.wysiwygwebbuilder.com

Couldn't find an answer, with possibly *Language Text* as an exception.
That seems not to match my requirement, though.

I'm looking for a general translation process, which (manually) allows to translate all elements.
A very good solution I found in another tool (see link below). But the WebBuilder is much more versatile.

A 'shadow copy' of the whole site is created, and these shadow entries can be translated (manually), even elements may be exchanged.
Every existing page (in the original base website) will be duplicated, and the names are modified by a language specific extension:
index.html > index.gb.html
which copies/duplicates the (german) base version to an english (.gb.) copy/double).
The english copy can manually be translated then.
Also (important!) all the existing (internal) base links are automatically modified to the second language.

Switching between these language versions is simply by clicking on a langugage symbol.
And then typing the translated text, or symbol. Nearly everything can be changed.

Is there any such (similar) thing in the shelf?
I promise, that I carefully searched the internet, but could not find a matching solution.

Multi languages website created as example:
https://blumendigi.com/

Site listing:

I'm sorry, there is no standard solution for translating text.
This is not a commonly requested feature, so we have focused on implementing other functionality instead.