- Markdown to Evernote - This is a Markdown to Evernote service for Mac OS X. It was originally written by Brett Terpstra
- Brett Terpstra’s blog - has lots of markdown info and tools for Mac users
- Notational Velocity Alternative - nvALT - a multi-markdown not-taking app.
- Marked - is a great app to preview Markdown/Multi-markdown files
- MacOS Markdown Service Tools - Markdown Service Tools is a collection of OS X Services to make creating Markdown-formatted text that much easier
- Markdown Editing Package for Sublime Text 2 - Use the Package Control plug-in in ST2 and search for “Markdown Editing” to install.