Apple - Which application to preview .md files?
The superuser question, Markdown Live Preview Editor?, provides a wealth of options:
- BBEdit
- TextMate
- Mou
- Marked
- MarkdownLive
- Atom
- Marked 2
- MacDown
In additional to those, you can install a markdown QuickLook plugin for Finder based previews.
MarkdownLive
Mou
Marked 2
I would like to add the excellent - and open source - MacDown to the list.
Visual Studio Code
Source: https://code.visualstudio.com/docs/languages/markdown#_markdown-preview
Microsoft's Visual Studio Code has been surprisingly pleasant to use as a general purpose IDE, and elegantly renders markdown.