Press Space on any .md file. See it rendered with headings, code blocks, tables, and diagrams. No app switch needed.
Download and install MacMD Viewer from the Mac App Store or via direct download. The QuickLook extension is included automatically.
Open System Settings > Privacy & Security > Extensions > QuickLook. Make sure "MacMD Viewer" is checked.
Navigate to any Markdown file in Finder, on your Desktop, or in Spotlight results.
The standard macOS QuickLook panel opens with your Markdown rendered beautifully — headings, code blocks, tables, Mermaid diagrams, all formatted.
Replaces the default plain-text preview for .md files system-wide. Works alongside other QuickLook extensions.
The QuickLook extension is included with MacMD Viewer. See all features or learn how to open .md files on Mac.