The new Notepad lets you write Markdown without installing anything. It works with plain text, keeps your syntax visible, and ...

Save the HTML file in Notepad or your preferred editor application. Log in to your Web hosting control panel and use the File Manager or similar utility to upload the file to your Web server.

In the latest beta version of Notepad (11.2504.46.0), it is also possible to create new texts from a text prompt. You can then edit the document until you are satisfied.