01 What happened to Disk Inventory X
Disk Inventory X’s official website lists version 1.3 for macOS 10.13 through 10.15. It remains a free, GPL-licensed treemap utility. That published range does not establish support for later versions of macOS.
If you are replacing it after a Mac upgrade, choose by supported operating system and workflow. A familiar name on a download page is not enough to establish that a separate fork is the original developer’s release.
02 The alternatives, honestly
Alternatives to Disk Inventory X| App | What stays familiar | What changes |
|---|
| GrandPerspective | Free, open-source treemap | Current release supports macOS 14+ on Intel and Apple Silicon |
|---|
| Delve | Rectangular view of file and folder sizes | Adds a sunburst and Collector; $4.99 once or free through referrals; macOS 26+, Apple Silicon |
|---|
| DaisyDisk | Visual exploration of disk usage | Uses a sunburst; $9.99 direct; macOS 10.13+, Intel and Apple Silicon |
|---|
Use the official GrandPerspective, DaisyDisk, and Delve requirements when choosing a download.
03 If you want free, take GrandPerspective
GrandPerspective is the most direct place to start if the essential requirements are a rectangular storage map and an open-source license. It adds configurable filters, Quick Look previews, saved scans, and exports.
Its latest release requires macOS 14 or later. The developer lists earlier releases for older versions, which is useful if you maintain more than one generation of Mac.
04 What Delve does differently
Delve lets you inspect a scan as a treemap or sunburst. Preview a file, check its location, and gather selected items in the Collector before moving them to the Trash. This workflow is useful when you want a broad view first and a deliberate cleanup step afterward.
The requirements are narrower: an Apple Silicon Mac running macOS 26 or later. The 14-day trial lets you evaluate it with your own folders before supporting our work for $4.99 once or getting the app free through referrals.
05 Make the switch with a familiar folder
- Start with a folder whose contents you recognize, such as Downloads or an archived project.
- Compare the scan scope and size setting before comparing totals between apps.
- Inspect a few large files and confirm their locations before removing anything.
- Use the app that owns a library or backup to manage its contents.
A disk analyzer helps locate the next thing to review. For a broader cleanup process, follow our Mac storage guide.
Common questions
Is Disk Inventory X still available?
Yes. Its official site offers version 1.3 and lists macOS 10.13 through 10.15. Check the published requirements rather than assuming support for a newer macOS release.
What is a free Disk Inventory X alternative?
GrandPerspective provides a free, open-source treemap through its official SourceForge download. Its current version requires macOS 14 or later, with older releases available.
Is a community fork the same as Disk Inventory X?
A separately maintained fork can have different requirements, release practices, and behavior. Check its maintainer and documentation independently; this comparison covers the original official release.
Does Delve work on Intel Macs?
No. Delve requires Apple Silicon and macOS 26 or later. GrandPerspective and DaisyDisk publish Intel-compatible options.
Sources and further reading
Product details checked September 19, 2026. Prices are in USD where shown; storefronts, taxes, and offers may differ. Recommendations reflect the workflows described here, without a comparative performance benchmark.
Continue with WinDirStat alternatives for Mac, Delve vs GrandPerspective.
Make room for what matters.
Explore your storage with Delve. See the largest files, preview what you find, and choose what belongs in the Trash.
14-day free trial · $4.99 once or free by sharing · macOS 26+ · Apple Silicon