Privacy Policy

Last updated: March 15, 2026

The short version

MacMD Viewer does not collect, store, transmit, or share any of your data. Period. Your Markdown files are read locally on your Mac. Nothing leaves your machine.

Data collection

MacMD Viewer collects zero data. There is no analytics, no telemetry, no crash reporting, no usage tracking. The app does not connect to the internet. It has no server component, no API calls, and no background network activity.

File access

The app reads Markdown files (.md) that you explicitly open. It uses macOS sandboxed file access. Files are read from disk, rendered in memory, and displayed. No file contents are stored, cached externally, or transmitted anywhere.

QuickLook extension

The QuickLook extension runs within macOS sandbox restrictions. It receives file data from the system, renders it, and displays the preview. No data is retained after the preview window closes.

Third-party services

MacMD Viewer uses no third-party SDKs, analytics services, advertising networks, or external dependencies that collect data. If you purchase through the Mac App Store, Apple processes the transaction under their own privacy policy.

Children's privacy

MacMD Viewer does not collect any personal information from anyone, including children under 13.

Changes to this policy

If this privacy policy changes, updates will be posted on this page with a revised date. Given that no data is collected, material changes are unlikely.

Contact

Questions about this policy? Reach out at support@macmdviewer.com.

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