Mac CLi - OS X command line tools for developers
Tree - Write documents in tree-like organisation with Markdown
Phunt - Product Hunt command line interface
NotePlan - Make plans inside an individual markdown note for every day in your calendar. Use it as a journal for your daily tasks and plan todos in advance. For Mac, iPhone and iPad.
speedtest-cli - Test your download speed using SpeedTest on the command-line
Markdown New Tab - Write notes in Markdown directly in the 'New Tab' page