Markdown, just read it
MicroMDViewer opens .md files the way you'd expect: double-click
one in Finder and read it, properly formatted. No editor, no tabs, nothing to set up.
Download on the Mac App Storecoming soon
MicroMDViewer opens .md files the way you'd expect: double-click
one in Finder and read it, properly formatted. No editor, no tabs, nothing to set up.
Headings, tables, task lists, fenced code and images — rendered in the system font at a comfortable reading width, in light or dark to match your Mac.
It does one thing and then gets out of the way. That's the whole pitch.
One click on first launch and every .md file on your Mac opens
here from Finder — no Get Info, no Change All.
Follows your system appearance and accent color, with a Liquid Glass toolbar on macOS Tahoe.
Edited the file somewhere else? Press ⌘R and the document re-renders where you left it.
No accounts, no analytics, no telemetry. The renderer is bundled inside the app and works entirely offline.
.md
Markdown .markdown
Stuck? The answer is probably below. Otherwise email eladkatz@gmail.com.
Because of the macOS sandbox, and it's working as intended.
When you open a document, macOS grants the app access to that file and nothing else — not even the other files sitting next to it. So if your document references an image in the same folder, the app genuinely can't read it until you say so.
Click Allow Access…, choose the folder, and it's remembered from then on. You'll only be asked once per folder.
On first launch the app offers to do it for you — one click.
You can also do it any time from the
MicroMDViewer menu → Set as Default Markdown
Viewer…, or the manual way: right-click any .md
file in Finder → Get Info → “Open with:” →
MicroMDViewer → Change All…
No. It's a viewer, deliberately. There's no editor, no tabs and no preferences — that's the entire point of it. Keep writing in whichever editor you already like, and use this to read.
No. Mermaid blocks and LaTeX render as plain code blocks, exactly as written. Images referenced from your document display normally, so diagrams exported as PNG or SVG work fine.
It opens in your default browser, and your document stays on screen.
Links pointing within the document — like #a-heading — scroll
to that spot instead.
Any Mac running macOS 14 Sonoma or later, Apple silicon or Intel. On macOS 26 Tahoe you also get the Liquid Glass toolbar and the layered app icon.
None whatsoever. See the privacy policy below.
Short, because there's very little to say.
MicroMDViewer does not collect, transmit, or store any personal data.
There are no accounts, no analytics, no crash reporting, no advertising and no tracking of any kind. Nothing you do in the app is sent anywhere.
Documents you open are read locally on your Mac and are never uploaded. The Markdown renderer is bundled inside the app, so formatting your document requires no network connection at all.
The single exception is ordinary web content: if a document you open
references an image at an https:// address, the app loads that
image from that server, exactly as any browser would. That request is
caused by the document's own content, goes only to the site hosting the
image, and carries no information about you.
The app runs in Apple's App Sandbox and can only read the files and folders you explicitly open or grant access to.
Questions? Email eladkatz@gmail.com.
Last updated 6 August 2026.