Rather than using markup (or markdown, or wiki or json or whatever underlying formatting) and seeing a preview,

and also rather than using a Wysiwyg editor with the option to "View code"

the Inmark Editor is a Wysiwyg editor, with the markup around the words you are writing shown in a tooltip above or below the text you are editing, with errors in red, and the current markup interpretation repeated inside the text (eg. *blabla* will show up in bold (including the two stars).

If you mark a section it will show the markup for that section and a few letters before and after.

Clicking on the markup allows you to edit it (like editing the formula in excel)

If there's a link which is referred to in a different section of the markup, there will be a link in the tooltip to see that section of code.

The option to "view source" still exists, but will be used much less.
-- pashute, Jan 12 2018

random, halfbakery