feature-request status-completed Preview mode is now available
If we can't have the side-by-side preview due to technical limitations, we're going to need a better alternative than the Rich Text mode for previewing our Markdown. Even just another setting or toggle to put a live preview pane below the MD editor (like the preview works now) would be much better than having to toggle between MD and RT editors.
I use the current, live preview a lot when writing posts. When writing regular-sized posts on a regular-sized screen, I keep my eyes on the live preview instead of the editor >90% of the time, probably only scrolling up and taking my eyes off the preview if I'm pasting in an image and the dialog asks me to confirm, or if I decide to add another sentence to a paragaph. My usual workflow includes scrolling down the site to see the live preview over actually looking at the editor a lot of the time.
The post states that one reason the RT editor could be better than the current arrangement is that
With the new editor, you see the preview by using the Markdown toggle to switch between Markdown and rich text modes and, because the rich text preview is part of the editor, you can edit right in the preview rather than having to find the edit window again. This is a lot more convenient for mobile users, too, with their smaller screens where scrolling through even a short post can mean a lot of work.
Toggling between two editor modes to get an approximate idea of what your post may look like isn't a live preview of what you're writing. It slows writing down. And saying that "you can edit right in the preview" isn't actually true: If I'm working in the RT editor, using it as both an editor and a preview at the same time, I can't continue writing in Markdown. I have to switch back, losing my "preview". Honestly, this is less than ideal. While it is less scrolling, it's also not live. And the RT editor does a worse job at showing how a post will look like than the current live preview does.
I like the idea of RT for mobile writing. I rarely use MD anyways when on my phone, just because asterisks, hyphens and hashtags aren't a one-click thing when looking at your phone keyboard. But right now, and most of the time, I'm writing my posts on a computer. This means I have my hands a the keyboard, and a screen big enough to actually show me what I'm doing.
This whole post right now easily fits on my screen. And the preview of it is live, and it's something that I treasure. It makes writing this easier, quicker, more interactive, more fluent. Whatever you do, for those people that do write using the Markdown editor, do not take away our live preview. The Rich Text editor isn't a live preview, switching between the two breaks flow, and you can't write Markdown if your editor is in Rich Text mode while seeing it the result as the live preview allows now.