Typora - A minimal Markdown reading & writing app.
iA Writer - Minimal Design, Maximum Focus
StackEdit - Full-featured, open-source Markdown editor based on PageDown, the Markdown library used by Stack Overflow and the other Stack Exchange sites.
Visual Studio Code - Build and debug modern web and cloud applications, by Microsoft
ghostwriter - A distraction-free Markdown editor for the desktop
MarkdownPad - MarkdownPad is a full-featured Markdown editor for Windows. Features: