macOS 27.3 makes Markdown files easier to read
macOS 27.3 adds native Markdown rendering to Quick Look, so previewing .md files displays formatting such as headings, bold text, lists, and links, with no need for an extra editor or Quick Look extension. The feature is available in the first developer beta of macOS 27.3 released yesterday, continuing the path set by Markdown import and export in Notes on iOS 26 and Markdown copy and paste support in iOS 27; Apple's Siri AI app skills also use SKILL.md files.
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macOS 27.3 adds native Markdown rendering to Quick Look, allowing users to preview .md files with their formatting applied.
In the first beta of macOS 27.3, Quick Look displays styled headings, bold text, lists, and links when previewing Markdown documents. Selecting a file in Finder and pressing the Space bar brings up a readable preview, without requiring a separate editor or Quick Look extension.
The addition builds on Apple's broader adoption of Markdown. Notes gained Markdown import and export with iOS 26, while iOS 27 introduced Markdown copy and paste, allowing users to paste Markdown as formatted text or copy rich text in Markdown format.
Apple's new Siri AI app skills also use Markdown. According to Apple's developer documentation, developers can bundle SKILL.md files with their apps to explain how Siri should handle tasks involving app actions.
Apple released the first macOS 27.3 developer beta yesterday. Related Roundup: macOS Golden GateTag: Siri AIRelated Forum: macOS Golden Gate