[JohnHaugeland]

Hashify.me (web)

.

Scrivener (Win/Mac)

.

Sublime Text (Win)

OmmWriter Dana (Win)

MarkdownPad (Win)

.

MultiMarkdown (Mac)

TextMate (Mac)

Marked (Mac)

Calepin (Mac)

Markdown Pro (Mac)

.

Elements (iOS)

Heart Writer (iOS)

Writing Kit (iOS)

Paragraft (iOS)

Write! (iOS)

[michaelbuddy]

sublime text is cross platform Win / Linux / Mac. Also it has a mode called Distraction-Free Shift+F11

[JohnHaugeland]

I did not know it was portable. Thanks for the correction :)