Markdown Viewer

A native macOS Markdown viewer built with SwiftUI and WebKit.

Features

• Native macOS app built with SwiftUI and WebKit.
• Tabbed windows with keyboard shortcuts.
• File change detection with a reload prompt.
• Mermaid diagram rendering.
• Table of contents sidebar (pinnable or hover to reveal).
• Syntax highlighting for fenced code blocks.
• Front matter preview.
• Find-in-page with next/previous navigation.
• Zoom controls (in/out/actual size).
• Open Recent menu for quick access to files.

Build & Run

# Run from source (development)
swift run MarkdownViewer

# Build release .app bundle
./build.sh

The release build creates Markdown Viewer.app in the repo root.

Requirements

• macOS 14+
• Xcode Command Line Tools