DuckDisk is a free, open-source macOS storage analyzer designed specifically for users who prefer precise, data-driven answers over confusing or purely aesthetic visual maps. Taking inspiration from WizTree, DuckDisk utilizes a table-first tree layout that simultaneously displays crucial metrics such as size, allocated space, parent percentages, item counts, and file-type totals while you seamlessly drill down through directories.

Built with versatility in mind, DuckDisk goes beyond local drives to let you analyze your storage across local disks, cloud services like OneDrive and Google Drive, and remote SSH connections—all from a single, unified application. For cloud scans, the tool operates securely using metadata only, ensuring your actual file contents are never downloaded. Fully Apple-notarized and accessible directly on the Mac App Store and GitHub, DuckDisk provides a powerful, transparent, and open-source solution for managing your digital footprint.

Pros of DuckDisk

Free and open-source software available on GitHub and the Mac App Store
Table-first, WizTree-style layout keeps sizes, counts, and file-type totals visible
Supports scanning local disks, cloud storage (OneDrive, Google Drive), and SSH connections in one app
Secure cloud scanning relies strictly on metadata without downloading file contents
Apple-notarized release for secure installation on macOS

Cons of DuckDisk

Limited to macOS operating systems based on current platform specs
Cloud support is currently restricted to OneDrive and Google Drive as noted
Lacks visual-map-only modes for users who prefer graphical disk space representations

Frequently Asked Questions

Is DuckDisk free and open-source?

Yes, DuckDisk is a free, open-source application available on GitHub and the Mac App Store.

What platforms and storage types can DuckDisk scan?

DuckDisk is built for macOS and allows you to scan local disks, cloud providers like OneDrive and Google Drive, and remote SSH locations all within a single app.

Are my files downloaded when scanning cloud storage?

No. Cloud scans use metadata only, meaning your file contents are never downloaded during the analysis process.

What makes DuckDisk's interface unique?

DuckDisk features a WizTree-style, table-first tree structure that keeps important data like size, allocated space, parent percentages, item counts, and file-type totals visible as you drill down into folders.