Upsite - A multi-tenant minimal website builder made with Ruby on Rails
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.
WakaTime - Analytics for programmers using open-source text editor plugins.
Markdown to PDF - Super simple way to get your markdown files to PDF
Mochi - Write notes and flashcards with Markdown and study them with spaced repetition.
UnMarkDocs - Unleash the Power of Markdown to Write Better Product Documentation