MarkNook: Markdown Editor

Fast Markdown viewer & editor

Only for Mac

$0.99

Mac

A fast, native Markdown editor for your Mac — live preview, split view, an on-device AI assistant, full GitHub-flavored Markdown, dark mode, and no tracking. MarkNook is a fast, native Markdown viewer and editor for the Mac. Open any Markdown file, watch the live preview update while you type, and switch between editor, split view and preview with a click or a keyboard shortcut. LIVE PREVIEW The preview follows GitHub-flavored Markdown (GFM): headings, lists, tables, task lists, strikethrough, code blocks, links and images look exactly the way you expect. LaTeX math formulas and Mermaid diagrams render right in the preview. Links open in your browser, and the preview follows the system's light or dark appearance. A REAL MAC EDITOR The editor is a true native text view with undo, find and replace, optional spell checking and a crisp monospaced font. Smart quotes and automatic text replacement stay off, so your Markdown remains exactly what you typed. AI ASSISTANT (APPLE INTELLIGENCE) Ask the built-in assistant to write, rewrite, improve, summarize, translate or create Markdown for the document you're editing, then insert the result or replace the whole document with a single click. It runs entirely on your Mac with Apple Intelligence — private and offline. (Requires a Mac that supports Apple Intelligence.) WRITING & FORMATTING TOOLS - A formatting toolbar, a Format menu and a right-click menu — all with keyboard shortcuts — for bold, italic, headings, lists, tables, links, images and more - Live Markdown syntax highlighting as you type - A document outline to jump around long files, optional line numbers, and a focus mode for distraction-free writing - Column (block) selection to select and edit many lines at once - Smart lists that continue automatically when you press Return MADE FOR YOUR WORKFLOW - Editor, split and preview layouts, switchable with Cmd+1, Cmd+2 and Cmd+3 - Remembers each document's layout, reopening it the way you left it - Synchronized scrolling between editor and preview in split view - Live word and character count - Opens .md, .markdown and plain text files - Automatic saving, plus rename, duplicate and revert from the title bar - Full dark mode support EXPORT & PRINT Export your document to HTML or Word (.docx), or print it as rich or plain text. PRIVATE AND RELIABLE MarkNook is fully sandboxed, shows no ads, contains no tracking and works completely offline. Your documents never leave your Mac. Whether you keep notes, maintain README files or write documentation: MarkNook keeps Markdown simple.

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MarkNook 1.2 adds an on-device AI assistant and remembers how you like each document. - New AI Assistant powered by Apple Intelligence: ask it to write, rewrite, summarize, translate or create Markdown, then insert it or replace your document — completely on-device and private (requires a Mac that supports Apple Intelligence) - MarkNook now reopens each document in the same layout — editor, split or preview — you last used for it - Redesigned About window with a link to our website - The Full Screen menu command uses a standard keyboard shortcut again - The entire app, including every new tool, is now localized in 20 languages - Various refinements and fixes Thank you for using MarkNook!

Version 1.2.0

The developer, Sebastian Kruse, 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 Collected

    The developer does not collect any data from this app.

    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
    • Sebastian Kruse
    Size
    • 1 MB
    Category
    • Productivity
    Compatibility
    Requires macOS 14.0 or later.
    • Mac
      Requires macOS 14.0 or later.
    Languages
    English and 19 more
    • English, Arabic, Czech, Danish, Dutch, Finnish, French, German, Italian, Japanese, Korean, Norwegian Bokmål, Polish, Portuguese, Russian, Simplified Chinese, Spanish, Swedish, Traditional Chinese, Turkish
    Age Rating
    4+
    Copyright
    • © 2026 Sebastian Kruse
  • Developer Website
  • Privacy Policy

    • Supports

    • Family Sharing

      Up to six family members can use this app with Family Sharing enabled.

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