Write in Markdown
The draft is Markdown. That is the text you edit.
Write in Markdown, preview how it reads across social platforms, then copy the formatted result.
Markdown stays the source. The preview shows how that same text reads on social platforms. The formatted result is what you copy.
The draft is Markdown. That is the text you edit.
See how the draft reads before it leaves the page.
The preview is there to show the same writing across social platforms.
What you take with you is the formatted result, not a second rewrite.
Copy that result when the preview matches the post you meant.
Write, preview, copy. The tool is that sequence, in that order.
Each step uses the previous one. The preview is of the Markdown you wrote. The copy is of the preview you checked.
Start in Markdown. The draft is the source for everything after it.
Preview how that draft reads across social platforms.
Copy the formatted result once the preview is the post you want.