Glassmark - Markdown Editor

Live-preview Markdown editor

Only for Mac

Free

Mac

A fast, native macOS Markdown editor with a beautiful live preview — code, maths, and diagrams, all rendered offline. Glassmark is a fast, native Markdown editor with a beautiful live preview. Open a folder, browse your Markdown files in the sidebar, and edit on the left while the rendered document keeps pace on the right. It's built to do one thing exceptionally well: edit Markdown with a gorgeous, instant preview — calm, local, and private. There are no accounts and no cloud; your files stay on your Mac. FEATURES • Live preview that updates as you type, with scrolling that stays in sync with the editor. • GitHub-flavoured Markdown: headings, bold and italic, tables, task lists, nested lists, blockquotes, footnotes, links, and images. • Syntax-highlighted code blocks, beautifully typeset maths (KaTeX), and Mermaid diagrams — all rendered on-device, nothing fetched from the internet. • In-editor syntax highlighting, auto-pairing of brackets, and automatic list continuation. • Focus mode and typewriter scrolling for distraction-free writing. • An outline panel to jump between headings, with the current section highlighted as you scroll. • Multiple workspaces, fuzzy Quick Open, and full file management from the sidebar. • Export your document to HTML or PDF. • Light, Sepia, High Contrast, and Dark preview themes, plus your own custom CSS. Glassmark is open source and built natively for macOS with SwiftUI. No tracking, no telemetry — nothing leaves your Mac.

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The developer, RECURSE LTD, 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.

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    Accessibility

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    Information

    Seller
    Recurse LTD
    Size
    3.9 MB
    Category
    Productivity
    Compatibility
    Requires macOS 15.0 or later.
    • Mac
      Requires macOS 15.0 or later.
    Languages
    English
    Age Rating
    4+
    Copyright
    © 2026 Recurse LTD
  • Developer Website
  • Privacy Policy

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