thanks to Alexander Deliyannis, I knew about https://www.aibase-cs.com/
each document contain objects which can be arranged freely, Objects can be text, images, tables, panels, connectors, rulers, shapes, numerical charts (bar, line, pie)
see this official image: https://www.aibase-cs.com/example.html
is there any similar software?
I know curio can do this (yet defective in charts part) but what else?

Don't know what the software is like (it might be great), but the https://www.aibase-cs.com/ website looks like a shareware site from 20 years ago. They could probably double their sales, or better, with a quick makeover from a competent web designer.

Andy Brice

Their website https://www.aibase-cs.com/ is one of the neatest, cleanest, web designs I've seen in many a year.

ALL essential information is "above the fold", on the top screen of the first page.
Without scrolling, just a quick glance, can quickly determine, "What's this software all about?"
That, in my opinion, is effective web design.

I wish more software vendors adopted straight-forward web presentations like that.
If their software is as clearly focused as their web site, I'm going in for a deeper look.

As mentioned in
https://www.aibase-cs.com/features.html

Export (HTML, SVG, MathML, pixel)

- This whole website (HTML) itself was exported by Aibase with a single click. It's a domain of Aibase documents; you can see the Aibase document for this page in Aibase help.

@larry-in-bankok: All essential info above the fold? Such as it is Windows only. Such as the "latest version" is from 2016. Yikes.