Native macOS reader for the .md files Claude, ChatGPT, and Copilot keep generating. Renders Mermaid, code, tables. $19.99, one-time.
Your editor is for writing. MacMD Viewer is for reading.
Like Preview.app for PDFs, but for Markdown. See how it compares to other markdown viewers for Mac →
Hit Space on any .md file in Finder. Rendered with headings, tables, diagrams. No app to open. Works in Spotlight too. Read the QuickLook setup guide →
Flowcharts, sequence diagrams, Gantt charts, all rendered inline. No more committing just to check if your diagram looks right. Complete Mermaid guide →
190+ languages, proper highlighting, follows your system theme. AI-generated code finally looks the way it should.
MacMD Viewer watches the file. When Claude or your editor saves, the preview updates in ~50ms. No refresh. No copy-paste.
Tables, flowcharts, code blocks: pinch or ⌘+ to zoom in.
Retina-sharp at every level.
You pay $20/month for AI that writes Markdown.
Pay $19.99 once to actually read it.
14-day money-back guarantee. No questions asked. Email support@macmdviewer.com.
One-time purchase. No subscription. No account needed.
14-day money-back guarantee. No questions asked. Email support@macmdviewer.com.
One-time purchase. No subscription. No account needed.
14-day money-back guarantee. No questions asked. Email support@macmdviewer.com.
One-time purchase. No subscription. No account needed.
AI tools output Markdown by default. When you save or export the output, you get a .md file. MacMD Viewer lets you open it instantly, rendered with headings, code blocks, tables, and diagrams. No copy-pasting into another tool.
VS Code splits your workspace in half, takes 1-2 seconds to load, and doesn't render Mermaid diagrams. MacMD Viewer is a dedicated reader. Double-click a file and it opens rendered, like a PDF.
macOS opens .md files in TextEdit as raw text. MacMD Viewer registers as the default handler. Double-click any .md file and see it rendered with headings, code blocks, tables, and diagrams.
An editor lets you write Markdown. A viewer renders it for reading. Think Preview.app for PDFs, but for Markdown. You keep your favorite editor. MacMD Viewer handles the read side.
Yes. Flowcharts, sequence diagrams, state diagrams, Gantt charts, all rendered inline. Standard Mermaid syntax, no plugins needed.
There's no trial. At $19.99, it's less than one month of ChatGPT Plus. And if you're not happy, you get a full refund within 14 days. No questions asked.
MacDown hasn't been actively maintained. Marked 3 has moved to a subscription model at $69.99 permanent or $2.99/month. MacMD Viewer is a modern SwiftUI app with Mermaid, syntax highlighting, QuickLook, and live reload, for $19.99 one-time.
MacMD Viewer renders with print-quality formatting. Use macOS Print > Save as PDF to create a PDF from any rendered Markdown file. Output preserves code highlighting, diagrams, and formatting.
11 free browser tools for Markdown — convert, format, preview, generate. Everything runs locally. When you want native Mac rendering, grab MacMD Viewer.
Every syntax shortcut in one page: headings, lists, links, images, tables, and code blocks.
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26 fact-checked statistics on the rise of solo founders, AI tool adoption among indie builders, and the productivity math of building alone with AI — sourced from the US Census Bureau, Stripe Atlas, Stack Overflow Developer Survey, GitHub, the Federal Reserve, and Microsoft Work Trend Index.
36 fact-checked AI-at-work stats for 2026: 78% of US workers at AI-adopting firms, $2.59T spend, 51% of devs daily. Tier-1 sources only.
7 Mac apps for Mermaid: native viewers, editors with extension, and online tools tested. Find the right pick for offline rendering, AI output, or quick prototyping.
VS Code's preview lacks Mermaid by default. Cursor's reload-after-agent bug is real. Six fixes for the common preview problems, plus when to switch viewers.
Obsidian installs at 213 MB on Mac. 5 lighter alternatives — including a 2 MB native SwiftUI viewer — handle Mermaid and QuickLook without the vault overhead.
$19.99 one-time. 14-day money-back guarantee.