[bdickason]

I take notes in Markdown in an editor that formats it automagically called IA Writer. Bullets are indented, headlines bolded and out-dented, etc.

[erikbye]

Also:

https://caret.io/ https://typora.io/

[cben]

Also the venerable https://stackedit.io/. Also the new GitBook https://docs.gitbook.com/v2-changes/feature-highlights#unifi...

I'm sure there are a few more markdown "WYSIWYM" I'm forgetting...

To build your own see also https://simplemde.com/. Basically CodeMirror is friendly to mixed-font syntax highlighting.

Also yours truly https://mathdown.net

[goddtriffin]

This looks absolutely amazing.