Professional Text and Source Editor
EverEdit embeds a Markdown mode with a toolbar and preview functions. You could preview your markdown with built in web browser(Ctrl+B). EverEdit would remember and restore your last preview position.
EverEdit is a fast, lightweight, extendable text, source and binary editor for Windows(Windows XP, Windows Vista, Windows 7, Windows 8, Windows Server 2003+). While it can serve as a good Notepad replacement, it also offers many powerful features for Web page authors and programmers.