Markdown Monster is a Markdown editor and viewer that lets you edit Markdown with syntax highlighting and fast text entry.
You can export Markdown to HTML by saving to disk or by copying Markdown selections as HTML directly to the clipboard. The HTML preview can display syntax colored code snippets for most common coding languages, and can easily be customized with HTML and CSS template to match your own sites. You can choose from a light and dark theme, and choose individual editor and preview themes. You can even use Vim or EMacs type conventions. Other convenience features let you browse for and select files in the built-in folder browser, jump to the current folder in Explorer or Terminal, commit to Git and more.