You didn't mention your operating system, which to me is important, as there's nothing like the response and feel of a native application - especially when edit

You didn't mention your operating system, which to me is important, as there's nothing like the response and feel of a native application - especially when editing a document. https://typora.io/ https://typora.io/ is my current Markdown client of choice. It's a native MacOS app, and it's free.