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Blazing fastno waiting, ever
Opens the instant you click and stays smooth no matter how long your document gets. No lag, no spinning wheel — just you, writing at the speed of thought.
MDPen is a blazing-fast, distraction-free Markdown editor with true native performance. Write, read, and preview in one calm space — then take it anywhere, from your desktop to your phone to the browser.
A fast, native Markdown editor.
A calm, focused canvas — switch between writing and a beautiful reading view, instantly.
Everything about MDPen serves one thing: getting your ideas down and reading them back, without a moment of friction.
Opens the instant you click and stays smooth no matter how long your document gets. No lag, no spinning wheel — just you, writing at the speed of thought.
A calm, uncluttered canvas that gets out of your way. Tuck away the sidebar, hide the chrome, and focus on nothing but what you are writing.
Write in plain Markdown or rich, formatted text, then flip to a beautiful reading view. Pick sans or serif, crisp or easy-on-the-eyes — the page adapts to you.
Write it, format it, read it — every view of your document stays perfectly in step as you type.
Code, math, diagrams, charts, tables, and callouts all render beautifully — and look exactly the same whether you preview or export.
Drop in code in any of dozens of languages and it's crisply syntax-highlighted to match your theme.
export function render(md) { return beautiful(md) }
Turn a few lines of text into flowcharts, sequence diagrams, and pie charts with Mermaid — no drawing tools required.
Write equations in LaTeX; read them crisp and clear.
Sortable tables, task lists, and to-dos that just work.
| Task | State |
|---|---|
| Draft | Done |
| Review | In progress |
Highlight tips, notes, and warnings in clean callout blocks.
Drag or paste an image and it lands right where you need it, saved neatly alongside your document.
Every action a keystroke away. Open files, switch views, change themes — all from one quick menu at ⌘K.
⌘K toggle reading view ⌘\ show editor + preview
The same beautiful experience on every device — desktop, mobile, and right in your browser. Your workflow comes with you, wherever you write.
Open any file with total confidence. MDPen quietly inspects every document before you ever see it, so nothing hidden inside can run code or compromise your machine.
Grab the app for your platform, or open it in your browser and start typing right now.
Also on iOS & Android · Free to try · No account needed