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Disk Inventory X

Free plan Mac

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Disk Inventory X's own site

What Disk Inventory X is

Disk Inventory X is a free macOS utility for visualizing how files and folders use disk space. Its treemap view maps storage items by size, while a file-type breakdown offers another way to inspect usage. The app can scan files and folders, including external drives. Disk Inventory Xs updates the original Objective-C application for Apple Silicon and requires an Apple Silicon Mac with macOS 10.13 or later; its releases are signed, notarized, and stapled. Disk Inventory Y is a separate rewrite using Swift and SwiftUI for macOS 14.0 or later. Y adds a file list with size bars, folder zoom, and moving files to Trash, and it can scan any folder. Protected-folder scans in Y require Full Disk Access permission. The Xs repository is licensed under GPL v3. The listed free download costs nothing.

Who it suits

Disk Inventory X suits Mac users who want a visual view of storage usage, including scans of external drives. Users should choose the Xs or Y edition according to their Mac hardware and macOS version.

What it does well

  • Free macOS download
  • Treemap storage visualization
  • File-type breakdown
  • External drive scanning
  • Y includes folder zoom and size bars

What to know first

  • Mac-only platform
  • Xs requires Apple Silicon
  • Y requires macOS 14.0 or later
  • Protected-folder scans require Full Disk Access

Plans

PlanBilled and limitsPrice
Free downloadmacOS app; Disk Inventory Xs requires an Apple Silicon MacFree

As diskinv.github.io lists them, read 12 Oct 2026. The maker's own page has the final word.

Verdict

Disk Inventory X offers no-cost visual storage inspection through treemaps and file-type views. Its Xs and Y editions have different hardware and macOS requirements, so compatibility matters.

Facts from Disk Inventory X's own pages

Disk Inventory Y
Disk Inventory Y is a from-scratch rewrite built with Swift and SwiftUI for macOS. · diskinv.github.io, 12 Oct 2026
Free plan
Yes · diskinv.github.io, 23 Sept 2026
License
The Disk Inventory Xs repository is licensed under GPL v3. · github.com, 12 Oct 2026
Maker credits
The repository credits Tjark Derlien as the original author and Mahmoud Lababidi for the Apple Silicon port and notarized release pipeline. · github.com, 12 Oct 2026
Original edition
Disk Inventory Xs updates the original Objective-C app to run natively on Apple Silicon. · github.com, 12 Oct 2026
Desktop platforms
macOS · diskinv.github.io, 23 Sept 2026
Purpose
Disk Inventory X visualizes disk space usage with treemaps. · github.com, 12 Oct 2026
Treemap view
Yes · diskinv.github.io, 23 Sept 2026
Xs distribution
The Xs releases are signed, notarized, and stapled. · github.com, 12 Oct 2026
Xs requirements
Disk Inventory Xs requires an Apple Silicon Mac and macOS 10.13 or later. · github.com, 12 Oct 2026
Xs visualization
Disk Inventory Xs includes the classic treemap visualization. · diskinv.github.io, 12 Oct 2026
Y features
Disk Inventory Y offers a disk usage treemap, a file list with size bars, folder zoom, and the ability to move files to Trash. · github.com, 12 Oct 2026
Y requirements
Disk Inventory Y requires macOS 14.0 or later. · github.com, 12 Oct 2026
Y scanning
Disk Inventory Y can scan any folder, and scanning protected folders requires Full Disk Access permission. · github.com, 12 Oct 2026

Where Disk Inventory X stands on Freedom251

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