MacDown 3000

MacDown 3000 is a free Markdown editor for macOS, available under the MIT License. It continues the legacy started by Chen Luo's Mou and carried forward by Tzu-ping Chung's MacDown.

Features:

Live Preview & Markdown Rendering

MacDown 3000 uses Hoedown to convert Markdown to HTML with live preview as you type. It supports:

• Fenced code blocks with language identifiers
• GitHub Flavored Markdown including tables, strikethrough (enabled by default), and autolinks
• Task lists for GFM-style checkboxes
• Customizable rendering options in Preferences

Syntax Highlighting

Code blocks get syntax highlighting via Prism, supporting numerous programming and markup languages. Additional Rendering Tools

• Math notation using TeX-like syntax ( . . . , [...], (...), and optional . . . blocks)
• Jekyll front-matter for static site generators
• Export to HTML or PDF with customizable styling

Editor Features

• Auto-completion: Automatic bracket and quote pairing, list continuation, and formatting shortcuts (customizable or disable)
• Universal binary: Built natively for both Apple Silicon (M-series) and Intel Macs
• Modern Markdown: Supports CommonMark and GitHub Flavored Markdown