DiskMapper
DiskMapper: A focused free tool for visualizing, finding, and cleaning storage on Apple silicon Macs. Ranked #79 of 104 in Disk Space Analyzers by our editors (3.0/10); pricing: Free plan; best for mac users wanting free cleanup tools.
At a glance
- Editor score3.0 / 10
- PricingFree plan
- Best forMac users wanting free cleanup tools
- Free planYes
- Paid fromFree
- Desktop platformsmacos
- Facts checked22 Sep 2026
Where it wins
- Free macOS app with sunburst and treemap storage views
- Scans whole disks, folders, and external drives
- Finds large files and system junk with cleanup actions
Where it doesn't
- Requires macOS 26 Tahoe or later
- Runs only on Apple silicon Macs
- Public beta software may not suit users seeking a mature release
Our verdict on DiskMapper
DiskMapper is a native macOS disk-space analyzer for people who want a visual way to understand and clean storage. It scans internal disks, external drives, and folders, then presents results through sunburst and treemap views. Drill-down navigation, breadcrumbs, and back/forward controls help users move through storage, while Categories groups content into types such as Applications, Documents, Photos, and Videos. The Free plan includes the complete listed feature set, including cleanup actions for selected files.
Its strongest fit is visual storage analysis. The Biggest Files panel lists the largest files on a volume, while System Junk detection adds confidence levels to help distinguish potential cleanup candidates. Users can select items across views and send them to Trash, remove local iCloud copies, or move or copy files elsewhere. Full Disk Access onboarding and per-source access warnings explain where macOS permissions are needed, which matters when scanning protected locations or external media.
DiskMapper is distributed as a signed, notarized direct download and does not require an account or use telemetry. It is offered as free donationware, with no paid tier described. The trade-off is platform and release scope: it requires macOS 26 Tahoe or later and Apple silicon, and it is currently a public beta listed as version 0.9.2. Mac users who want free, visual disk analysis and basic cleanup should find the feature set well aligned; users needing cross-platform access, an Intel Mac option, or a mature non-beta release should choose an alternative.
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DiskMapper pricing
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DiskMapper fact sheet
| Free plan | Yes |
|---|---|
| Paid from | Free |
| Desktop platforms | macos |
| Treemap view | Yes |
| Application sizes | Yes |
| File-type breakdown | Not verified |
| External drive scans | Yes |
| Exportable reports | Not verified |
| Scan scope | Files_folders_apps |
| Deployment | Desktop |
| Platforms | macOS |
| Support | Email, Docs |
| Built for | Solo, Small business (editorial estimate) |
| Pricing | Free plan (source) |
| Website | diskmapper.app |
| Facts checked | 22 Sep 2026 |
Alternatives to DiskMapper
- TreeSizeA broad Windows analyzer with strong free features and tiered automation tools.9.3
- WinDirStatA classic Windows analyzer with treemaps, file breakdowns, duplicate detection, and CSV export.9.1
- FilelightA free, open-source disk analyzer with strong KDE integrations and ring-based visuals.9.0
See all DiskMapper alternatives →
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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