MarkdownRenderer

macOS Sequoia-only Markdown editor with live “pretty” preview.

Build

• Open MarkdownRenderer.xcodeproj in Xcode 26.2
• Build/run the MarkdownRenderer target
• Optional gate: Scripts/verify.sh

Finder integration

The app declares support for .md files. To make it the default:

• Finder → select a .md → Get Info → Open with → MarkdownRenderer → Change All…

Features (current)

• Native tabs (one doc per tab)
• Sidebar: recents + open folder + file list + outline
• Live preview (GFM-ish) via bundled JS renderer (no network)