Markdossier

The developer's markdown tool

Only for Mac

$14.99

Mac

Beautiful WYSIWYG markdown editing for developers. Render CLAUDE.md, agent configs, and documentation outside your IDE. KaTeX math, Mermaid diagrams, 11 templates. Markdossier renders your markdown files beautifully. Open, edit, and manage .md files without ever seeing raw syntax - unless you want to. Built for developers who maintain agent configs, project docs, and skill files alongside code. You have CLAUDE.md files, .cursorrules, READMEs, and PRDs scattered across your repos. Right now you either open your IDE (overkill) or stare at raw markdown (painful). Markdossier gives you a focused, beautiful editor that does one thing perfectly. WYSIWYG Editing - Full rich-text editing with headings, bold, italic, links, images, tables, code blocks, and task lists - Toggle raw markdown anytime with Cmd+/ - Selection carries over between rendered and raw modes - Charter font default, optimized for comfortable reading Developer Tools - IDE-accurate line numbers matching VS Code/Cursor - KaTeX math rendering (inline and block equations) - Mermaid diagram rendering with pinch-to-zoom and pan - GitHub-style callouts (NOTE, TIP, WARNING, CAUTION) - Templates for CLAUDE.md, system prompts, agent specs, PRDs - Configurable file types - view JSON, YAML, TOML alongside markdown File Management - Multi-tab, multi-window with cascade positioning - Sidebar file tree with drag-and-drop from Finder - Smart workspace switching - old tabs close when you open a new folder - Cross-folder dialog when opening files from different directories - Hot reload when agents or external tools edit your files Startup Experience - Command palette on every new window - Recent files, templates, and quick actions in one place - Multi-line placeholder hints with keyboard shortcuts Privacy First - No cloud. No telemetry. No account required. - Your files stay on your disk. Always. 40+ preferences, 30+ keyboard shortcuts, dark mode, custom CSS support, and accessibility features throughout.

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The developer, Myron Koch, 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
    • Myron Koch
    Size
    • 102.6 MB
    Category
    • Productivity
    Compatibility
    Requires macOS 12.0 or later and a Mac with Apple M1 chip or later.
    • Mac
      Requires macOS 12.0 or later and a Mac with Apple M1 chip or later.
    Languages
    English and 51 more
    • English, Afrikaans, Amharic, Arabic, Bengali, Bulgarian, Catalan, Croatian, Czech, Danish, Dutch, Estonian, Filipino, Finnish, French, German, Greek, Gujarati, Hebrew, Hindi, Hungarian, Indonesian, Italian, Japanese, Kannada, Korean, Latvian, Lithuanian, Malay, Malayalam, Marathi, Norwegian Bokmål, Persian, Polish, Portuguese, Romanian, Russian, Serbian, Simplified Chinese, Slovak, Slovenian, Spanish, Swahili, Swedish, Tamil, Telugu, Thai, Traditional Chinese, Turkish, Ukrainian, Urdu, Vietnamese
    Age Rating
    4+
    Copyright
    • © 2026 Peak Summit Labs
  • Developer Website
  • Privacy Policy

    • Supports

    • Family Sharing

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