Leafdown is an open-source, local-first Markdown desktop app for ordinary files and folders. It is built for quickly opening, reading, and editing Markdown without adopting a vault, workspace, cloud service, or IDE.

The initial internal alpha has been released. Leafdown remains under active development and is not yet packaged for broad redistribution.

• Opens individual Markdown files and ordinary folders.
• Shows supported Markdown files in a folder-aware article navigator.
• Provides one hybrid WYSIWYG Markdown editor instead of split source/preview panes.
• Saves clean Markdown back to disk while preserving Markdown semantics.
• Handles dirty documents, recent files and folders, local links, local images, and filesystem watcher refreshes.
• Runs offline without accounts, telemetry, cloud sync, or project metadata in opened folders.

• Documentation: product behavior, decisions, architecture, and engineering patterns.
• Changelog: release notes.
• Contributing: local development and contribution workflow.
• Security: private vulnerability reporting.

This project is licensed under the GNU General Public License v3.0 or later.