Supported File Types

Markdown

ExtensionDescription
.mdStandard Markdown
.markdownMarkdown (alternate)
.mdownMarkdown (alternate)
.mkdMarkdown (alternate)
.mkdnMarkdown (alternate)
.mdtextMarkdown (alternate)

All Markdown extensions are treated identically. Markant parses GitHub Flavored Markdown (GFM) via CommonMark, plus:

  • LaTeX math ($inline$ and $$display$$)
  • Wikilinks ([[page]] and ![[image]])
  • YAML frontmatter
  • HTML tables and inline formatting tags

MarkBook

ExtensionDescription
.mkbMarkBook archive

A MarkBook is a ZIP archive containing Markdown files and assets. See Working with MarkBooks.

Setting Markant as default

To set Markant as the default viewer for .md files:

  1. Right-click any .md file in Finder
  2. Select Get Info (⌘I)
  3. Under Open with, select Markant
  4. Click Change All…
Download this article Markdown (.md) MarkBook (.mkb)

Last updated: 2026-04-14