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MultiMarkdown Composer is a text editor that is designed from the ground up around the MultiMarkdown syntax. It is designed to make writing in MultiMarkdown even easier than it already is, with automatic syntax highlighting, built in previews, easy export to any format that is supported by MultiMarkdown, and more.

  • MultiMarkdown syntax highlighting
  • Customizable themes - choose from built in themes, including solarized, or design your own
  • Instant preview of rendered HTML
  • Support for using Marked to preview if it's installed
  • Automatic table of contents drawer

What's New

Version 4.3.3:
  • Updated MMD Engine -- version 6.3.2, plus other fixes (properly handle files > 4k in length that include UTF-8 BOM; improved HTML comment parsing inside code blocks)
  • Fix potential deadlock condition, including one that triggered if multiple files were opened simultaneously (such as automatically reopened files)
  • Fix potential crash when the cursor or selected range


  • OS X 10.11 or later

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MultiMarkdown Composer User Discussion

3.5 10


Current Version (4.x)


Downloads 5,686
Version Downloads 9
License Free
Date 23 Apr 2018
Platform Intel 64 / OS X
Price Free
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