On a Mac, double-clicking a .md file cold-launches Xcode: thirty seconds to read a README. Markdown Viewer makes double-click mean what it should. The file, rendered GitHub-style, in under a second. Need to change something? ⌘E splits in a raw-markdown editor with live preview. Native, all local, free.
Download for MacInstall the CLI and run the dev server with npm run dev.
$ npm install
$ npm run dev # http://localhost:3000
One job: make .md files feel native on your Mac. No vault, no library, no sync, no account.
Opens straight into a GitHub-style rendered page in under a second. Headings, tables, code blocks, task lists, images: the way you already read markdown.
⌘E splits in a raw-markdown editor with live preview as you type. ⌘S saves, ⌘F finds, and undo, redo and Save As work like every real Mac app.
The rendered page follows your system appearance. Links open in your browser; relative links to other .md files open in new windows.
Native Swift and AppKit with a bundled markdown parser. A few MB on disk, instant launch, no Electron, no background agents.
Install once. New versions arrive by themselves (Sparkle), with no re-downloading from this site.
No account, no cloud, no telemetry; nothing leaves your Mac. Free, no upsell.
Open the DMG, drag Markdown Viewer in, and set it as the default for .md (right-click a file → Get Info → Open with → Change All, once).
READMEs, design docs, LLM output, changelogs: they open rendered, in your system's light or dark theme, with working links and images.
The window splits into raw markdown and live preview. Fix it, ⌘S, ⌘E back to reading. Undo, find and Save As all work like a real Mac app, because it is one.
One universal build, notarized by Apple. Apple Silicon and Intel in one download. It auto-updates itself: install v1 once and you're done.
Download for Mac · 1.0.0 · universal