Open 70+ file formats in one gorgeous Mac app. PDFs, EPUBs, Markdown, code with syntax highlighting, Mermaid/PlantUML diagrams. Metal accelerated for buttery smooth performance. Tabs, multi-window support, beautiful themes. $4.99 once. No subscriptions.

Smackdown is a beautiful Markdown viewer for macOS with Light, Dark, and Cyberpunk themes. Built for speed and clarity, it makes reading and editing effortless. Completely free with no ads or purchases, it’s the best way to view your Markdown files.