QuickMark — Markdown Viewer & Editor for Mac, iPhone & iPad
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Mac · iPhone · iPad<br>The calm way to read and write Markdown.
A fast, native Markdown app for Mac, iPhone, and iPad. Open any .md and<br>see it rendered exactly like GitHub — code, math, and diagrams included — without<br>waiting on a heavy editor to load.
Download on the App Store
Native on Mac, iPhone & iPad · Nothing to set up · Works fully offline
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Why QuickMark<br>For when you just want to see it.
A full editor is a lot to wake up just to read a README — QuickMark opens the moment you need it and stays out of your way.
Open in an instant
Press Space in Finder or tap a file and it's rendered before a heavier editor would finish loading.
Nothing to set up
No plugins, no config, no project to open first — code, math, and diagrams just look right the first time.
Reads exactly like GitHub
What you see is what you'd publish, so you never wonder how the file will land.
Quiet, and yours
No panels clamoring for attention, no ads, no tracking — your files stay on your device and work offline.
A closer look<br>The good parts, none of the noise.
Everything you need to live in Markdown — and nothing shouting for your attention.
macOS · Quick Look<br>Press Space. Read it instantly.
Select any .md in Finder and tap Space — QuickMark renders it<br>beautifully right there, no app to open and wait for. It's the Markdown<br>preview the Mac always should have had.
Space in Finder<br>~50–100 ms<br>No app launch
All platforms<br>Code, math & diagrams that look right.
Syntax highlighting for 35 languages, Mermaid flowcharts and sequence<br>diagrams, and KaTeX math — rendered cleanly and switchable between 37 code<br>themes in an instant. Hover any code block to copy it.
35 languages<br>Mermaid<br>KaTeX math<br>Callouts<br>Copy on click
Mac · iPad<br>Write and preview, side by side.
A clean editor on the left, your live render on the right, scrolling in<br>perfect sync. An outline keeps long documents one tap away, and<br>find-in-page is accent-insensitive — handy across many languages.
Split view<br>Sync scroll<br>Outline<br>Find
Mac · iPhone · iPad<br>Publish & share in one tap.
Turn any document into a clean web page at quickmarkmd.com —<br>server-rendered, so it looks identical to what you wrote. Send the link to<br>anyone; they read it in a browser, with no app and no account.
One tap<br>Nothing to install<br>Looks 1:1
Mac · iPhone · iPad<br>Export to anything.
Hand off a polished file in seconds — PDF, HTML, Word, EPUB, PNG, or rich<br>text you can paste straight into an email, a doc, or a chat. Your reading<br>theme and font size come along for the ride.
PDF<br>HTML<br>Word<br>EPUB<br>PNG<br>Rich text
All platforms<br>Make it yours.
Six reading themes — from clean Docs to a warm Essay serif to a<br>green-on-black Terminal — and 37 code themes. QuickMark follows your system<br>Light or Dark automatically, or you can pin either. Switching is instant.
6 reading themes<br>37 code themes<br>Light & dark
Everyday details<br>The small things that add up.
The native touches you stop noticing because they just work.
Tabs, unlimited
Keep every document a tab away. Reorder them, drag between windows, and reopen the one you just closed.
Outline navigation
A live outline of your headings makes jumping around a long document effortless.
Find in page
Search within a document and step through matches — accent-insensitive, so bi also finds bị.
Live auto-reload
Edit a file in another app on your Mac and QuickMark refreshes the moment you save.
Save to QuickMark
Share text or a link from any app on iPhone or iPad straight into a fresh .md file.
Private & offline
Your files stay on your device. No ads, no tracking, and it works with no connection at all.
Mac · iPhone · iPad<br>One QuickMark, at home on all three.
The same calm, native experience on your Mac, your iPad, and the iPhone in your pocket.
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Private by design<br>Your files stay yours.
QuickMark reads and writes files on your device — there's no account to open,<br>no ads, and nothing about you is tracked. It works fully offline, on a plane<br>or off the grid. (Anonymous crash diagnostics only; details in our<br>Privacy Policy.)
User Stories<br>Loved by the people who live in Markdown.
Writers and developers reach for QuickMark because it stays quiet and lets their content do the talking. In their words:
USER_VERIFIED
"Honestly I'd been wanting this for years. Hit space on a .md in Finder and it's just there, rendered properly — no app to wait for. I must use it 30 times a day now and barely notice I'm doing it."
DK<br>David K.Senior Engineer
USER_VERIFIED
"Wrote up our release notes, hit Publish, and had a link to drop in our team chat a second later. A teammate opened it on her phone and it looked exactly like my screen — no sign-in, nothing to set up. That's the dream."
NP<br>Nina PetrovaDocumentation Lead
USER_VERIFIED
"My READMEs are a mess of Swift, Python and a couple of mermaid diagrams. This is the first app where the diagrams actually look good...