Best Open Source Markdown Editor for Mac

MacDown is a free and open-source markdown editor for macOS. MacDown provides live preview, syntax highlighting and a minimalistic appearance for easy Markdown formatting. The editor is influenced by Mou, and I try to mimic much of its behaviour as much as possible both in UI and the logic. MacDown is loved and use by many thanks to its highly customisable Markdown rendering options, syntax highlighting in fenced code blocks, and sophisticated auto-completion.

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A markdown editor and reader that gives you a seamless reading and writing experience. Typora removes distractions by removing the markdown source code and syntax symbols with its mode switcher and preview mode. The application supports tables, code fences with syntax highlight, LaTeX and Table of Contents and can be customized at will with custom CSS theme support.

iA Writer is an award-winning markdown editor available for Android, iOS, macOS and Windows. iA Writer provides a minimal interface that is crafted to cut out noise. With iA Writer, It’s just you, your thoughts, and the words on the page. Abstracted away are powerful features such as focus mode, PDF preview and much more.

A free and open-source IDE for macOS, Linux, and Windows developed by GitHub Inc. The application is build on the Electron framework and provides a wide eco-system of add-ons that can be used to extend the IDE further. Atom is loved by developers across the globe.

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Mou is the missing Markdown editor for web developers. The software is avalible for Mac OSX and features live preview, sync scroll, auto save, powerful actions, auto pair, custom themes and CSS, HTML and PDF export, enhanced CJK support and more.

Haroopad is a free and open-source markdown editor or document processor for creating web-friendly documents. The application gives you the same editing experience regardless of the platform you are working on. Haroopad is avalible for macOS, Linux and Windows.

StackEdit is an open-source, browser-based Markdown editor with a wide varity of features. It allows you to edit multi-Markdown documents in offline and online modes, lets you store documents in HTML and PDF formats, and collaborate with friends and co-workers though third-party cloud services such as Dropbox, GitHub and Google Drive. A bonus feature of StackEdit is the integration with blogging platforms like Blogger, Tumbler, and WordPress where your documents can be outputted as Markdown or HTML with Handlebars template engine