macOS 27.3 adds native Markdown rendering to Quick Look

Starting with macOS 27.3, users can now preview Markdown files with proper formatting directly in Quick Look. Apple released the macOS 27.3 beta 1, introducing new Safari features such as Vertical Tabs and Adaptive Dark Mode, along with expanded Siri AI capabilities and new tools for developers. Among these smaller changes is an enhancement to Quick Look, which now renders .md files with proper formatting instead of displaying their raw Markdown syntax.

Apple has been progressively expanding Markdown support across its platforms, including the ability to import and export Markdown files in Notes. Markdown has gained increased importance with the rise of AI agents, which utilize .md files to store instructions, context, and other information. Notably, Apple's new Siri AI app skills feature also employs Markdown-based SKILL.md files, enabling developers to provide instructions that assist Siri in executing complex tasks within their applications.

For those unfamiliar, Markdown is a simple text formatting syntax developed by John Gruber in 2004, which has since gained widespread use for writing documentation, publishing content online, and providing instructions to AI agents. Markdown is a text-to-HTML conversion tool for web writers, allowing users to write using a plain text format that is easy to read and write, and then convert it into structurally valid HTML.

By simply using a few characters, users can create headings, bold text, lists, and links. Starting with macOS 27.3, users will be able to preview the results of these Markdown files directly in Quick Look, without the need to open the files in a separate application. To learn more about Markdown, users can follow the provided link. For additional Apple news, viewers can check out 9to5Mac on YouTube.