Markdown QuickLook is a macOS Quick Look extension designed to render Markdown files directly within Finder. md file and pressing the spacebar, users can view a fully rendered preview that displays Markdown elements as intended, including headings, code, tables, and task lists. The extension is intended for anyone working with Markdown files on macOS who wants a quick way to preview formatted content without opening a separate application window.
The tool provides rich rendering capabilities, supporting a range of Markdown features such as headings, lists, blockquotes, links, bold, italic, strikethrough, and inline code. Syntax-highlighted code blocks are displayed using a GitHub-style theme, available in both light and dark modes. For tables, the extension renders GitHub-flavored Markdown tables as native AppKit tables, rather than showing the raw pipe characters typical in plain Markdown. Task lists and other advanced Markdown elements are also supported, offering a comprehensive preview experience.
Markdown QuickLook is delivered as a small, sandboxed Quick Look extension for macOS 12 and later. It operates offline with no network access and runs as a menu-bar helper, avoiding the Dock and staying unobtrusive. Installation involves downloading a disk image, dragging the app into the Applications folder, and launching it once to register the extension. If an outdated preview is cached, users can reset the Quick Look cache via the menu-bar item.
The extension is free and open source, distributed under the MIT License, and its source code is available on GitHub. Markdown QuickLook addresses the need for a convenient, integrated way to preview Markdown files on macOS, making it a useful utility for developers, writers, and anyone who works with Markdown documents.
Markdown QuickLook sits in PulseGate's Design & Creative category. It focuses on previewing Markdown files natively in macOS Finder without opening a separate app. It is built as an open-source project for macos users. Markdown QuickLook is open source under the MIT license. Markdown QuickLook is available on the web and macOS.
It is developed by jzone3, and the product first shipped in 2026. Development happens publicly on GitHub with 13 stars and 38 commits in the last 90 days. Key capabilities include markdown rendering, syntax highlighting, and table support.
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Show HN: Markdown Viewer for Mac Finder verified by the PulseGate indexer
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