A minimalist Markdown viewer for macOS and iOS. Read-only, native, zero third-party dependencies.
What it does
Opens a .md file and renders it.
Selectable, copyable text. Code blocks and tables get a one-click copy button.
Quick Look extension on macOS — spacebar-peek and Finder preview pane render .md.
Syntax highlighting for about 40 languages.
GitHub-style task lists, tables, inline images, a tiny LaTeX subset.
Export the rendered document to a paginated PDF with images embedded.
Light and dark theme — follows the system, or pick one explicitly.
What it doesn't do
No editor, no live preview, no autosave. Read-only by design.
No HTML rendering, no WKWebView. Pure Swift + AppKit / UIKit / SwiftUI.
No accounts, no analytics, no telemetry.
No third-party packages.
Why
The most popular JavaScript Markdown library lists about 636 transitive packages and ~39,000 lines of code on its public dependency graph. The md.too app is a few Swift files with no dependencies. Every package you don't pull in is a CVE you don't have to read on a Saturday night.