A Clean, Native Markdown Editor for macOS.
Markdowner is a fast, lightweight Markdown editor built natively for macOS. Whether you are a writer drafting articles, a developer editing documentation, or anyone who works with Markdown files, Markdowner gives you a clean, focused workspace that feels right at home on your Mac.
Edit and Preview in One Place
Write in a distraction-free editor with monospaced text and syntax highlighting that makes your Markdown structure easy to read at a glance — headings, bold, italic, links, code blocks, and lists are all visually distinct. When you are ready to see the result, toggle to a beautifully rendered preview with a single click or Cmd+P.
Markdowner supports full CommonMark and GitHub Flavored Markdown, including tables, task lists, strikethrough, and footnotes.
Features
- Syntax-highlighted Markdown editing with monospaced font
- Instant toggle between Edit and Preview modes
- Full CommonMark and GitHub Flavored Markdown rendering
- Tabbed interface for multi-file editing
- Syntax-highlighted code blocks with language detection (30+ languages)
- Find and Replace
- Autosave with configurable idle period
- Adjustable font size
- Optional line number gutter
- Status bar with word count, character count, and cursor position
- Open Recent files support
- Drag and drop .md files to open
- Registers as the default handler for .md and .markdown files
- Full Dark Mode and Light Mode support
- Native macOS full-screen mode
- Window and tab restoration on relaunch
Built for macOS
Markdowner follows Apple’s Human Interface Guidelines and supports everything you expect from a native Mac app: Dark Mode, full-screen mode, standard keyboard shortcuts throughout, and window restoration on relaunch. It launches in under a second and handles large files without lag.
Download
Available on the Mac App Store. Requires macOS 14 Sonoma or later.
Support
If you experience any issues or have questions about Markdowner, please let us know. Send us an email and we will get back to you as soon as possible.
Privacy
Markdowner does not collect, transmit, or share any personal data. All files are stored locally on your device.