Margin: Markdown Reader

MD viewer, preview & PDF print

Only for Mac

Free · In‑App Purchases

Mac

Open any .md file and read it like a finished page. No vault, no setup, no editor waiting to change a word. Margin is a reader for Markdown — not another editor. Open any .md file from Finder and it appears as finished, typeset pages: no setup, no vault to configure, and no chance of changing a word by accident. It is built the way a Mac document app should be. Double-click a file, or set Margin as the default app for .md, and your notes open instantly in a real document window with tabs, full-screen, and a proxy icon in the title bar. TYPESET, NOT PREVIEWED • System typography end to end — SF Pro and New York, tuned line height, a reading measure that stays comfortable at every text size • Light and dark follow the system; no theme to pick, nothing to configure • Text size and serif/sans controls live behind one Aa button MADE FOR THE NOTES YOU ACTUALLY HAVE • Obsidian-flavored syntax: callouts, wikilinks, tags, embeds and a collapsible properties block for YAML frontmatter • GitHub-flavored Markdown (GFM): tables, task lists, strikethrough, footnotes and highlighted code in 100+ languages • README files, agent and AI output docs, meeting notes, changelogs — anything plain text FIND YOUR WAY THROUGH LONG DOCUMENTS • An outline sidebar — a live table of contents (TOC) built from your headings, with scroll-spy highlighting so you always know where you are • Fast in-document find with match highlighting • Live reload: edit in any editor and Margin re-renders on save, holding your scroll position PRINT AND SHARE • Print or export to PDF with the same typography you read on screen • Page setup honors your margins, headers and footers QUIET BY DESIGN • Nothing you read leaves your Mac — reading works fully offline, with no account, no sync and no telemetry. The trial and the one-time unlock go through the App Store, and that is the app's only network activity • Sandboxed, and it never asks for a folder until an image or embed actually needs one • Read-only by intent — Margin cannot modify your files Free for 7 days, then $9.99 once to keep. No subscription, no sign-up, nothing to cancel. Margin does not edit, sync or organize your notes. It opens them, makes them beautiful, and gets out of the way.

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The developer, Altai Ventures LLC, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Linked to You

    The following data may be collected but it is not linked to your identity:

    • Purchases

Privacy practices may vary, for example, based on the features you use or your age. Learn More

Accessibility

The developer has not yet indicated which accessibility features this app supports. Learn More

Information

Seller
Altai Ventures LLC
Size
6.4 MB
Category
Productivity
Compatibility
Requires macOS 26.0 or later.
  • Mac
    Requires macOS 26.0 or later.
Languages
English
Age Rating
4+
In-App Purchases
Yes
Copyright
© 2026 Altai Ventures LLC
  • Developer Website
  • Privacy Policy

    • Supports

    • Family Sharing

      Some in-app purchases and subscriptions may be shareable with your family group when Family Sharing is enabled. Learn More

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