MacMD Viewer
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Read Markdown on Mac, the way it was meant to look

Native viewer for .md files — rendered, not raw. QuickLook preview, Mermaid diagrams, syntax highlighting, 12 themes. A license key is required to activate.

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Buy License: $19.99

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Download .dmg

Already purchased? Contact support@macmdviewer.com with your order email to recover your key.

What you're downloading

MacMD Viewer is a native macOS app (~10 MB) that renders Markdown the way it's meant to look — headings, tables, code blocks, and diagrams, not raw asterisks and backticks. It's built for the read side of AI workflows: the .md reports, plans, and READMEs that Claude, ChatGPT, Cursor, and Codex hand you.

  • —QuickLook preview — press Space on any .md file in Finder to read it rendered — no app to open.
  • —Mermaid diagrams — flowcharts, sequence, state, and Gantt charts render inline.
  • —Syntax highlighting — fenced code blocks are colored across dozens of languages.
  • —12 themes + live reload — light and dark themes, and the view refreshes as files change on disk.
  • —Private by design — files never leave your Mac — no account, no cloud, works offline.

The .dmg is free to download and a one-time $19.99 license key activates it on your Mac — no subscription, free updates within the major version. New here? Follow the six install steps below after the download finishes.

Installation guide

1

Open the installer

Open the downloaded .dmg file from your Downloads folder. You’ll see the MacMD Viewer icon and an Applications shortcut.

2

Drag to Applications

Drag the MacMD Viewer icon into the Applications folder. Close the installer window.

3

Launch the app

Open MacMD Viewer from Applications. macOS asks once to confirm you want to open an app downloaded from the internet — click “Open.”

4

Activate your license

Paste your license key and click Activate. You’re all set. Double-click any .md file to start viewing.

MacMD Viewer is signed with a Developer ID and notarized by Apple, so it opens cleanly on macOS 14+. There is no trip through Privacy & Security and nothing to unblock.

System Requirements
macOS 14 (Sonoma) or later · Apple Silicon or Intel · 5 MB download / ~10 MB installed
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