Markdown editor for web developers. Requires OS X 10.7+ to run.
When current available Markdown editors are almost all for general writers, Mou is different: It's for web developers. Syntax highlighting, live preview, sync scroll, fullscreen mode, auto save, powerful actions, auto pair, custom themes and CSS, HTML and PDF export, enhanced CJK support. I know, it's exactly the app you want.
Requires OS X 10.7 +