SpaceBrowser

At a glance

• Editor score
  5.5 / 10
• Pricing
  Free plan
• Best for
  Users wanting a free treemap on major desktop OSes
• Free plan
  Yes
• Paid from
  Free
• Desktop platforms
  Windows, Linux, macOS
• Facts checked
  23 Sep 2026

• Where it wins

  • Treemap makes file and folder sizes easy to compare visually
  • Incremental scan cache detects filesystem changes
  • Exclusions and cleanup actions support focused storage reviews

• Where it doesn't

  • No verified reporting or file-type analysis
  • macOS packages are available, but the build is not yet tested
  • Permanent deletion is available, so cleanup actions need care

Our verdict on SpaceBrowser

SpaceBrowser is a free, open-source desktop disk space analyzer for people who want to see where storage is going across Windows, Linux, or macOS. It scans drives, volumes, or folders and maps files and folders into a size-proportional treemap, making large items visually prominent. The focus is exploratory: users can navigate between treemap levels, open files or folders, move items to trash, or permanently delete them. It suits individuals and small teams who prefer visual inspection over a report-led workflow.

Its strongest fit is visual exploration with useful scan controls. An optional free-space node can show remaining capacity for a scanned volume, while an incremental cache uses filesystem change detection. Scans can be cancelled, with elapsed time and file and folder counts shown live. Exclusions cover paths, hidden files, symlinks, and network filesystems, which helps narrow a scan to relevant storage. Customizable colors, scale, shape, shading, and keyboard and mouse controls provide flexibility in how the treemap is read and navigated.

SpaceBrowser also includes practical file-management actions, but those actions make caution important: it supports both moving items to trash and permanent deletion. The listed capabilities do not include verified reporting or file-type analysis, so buyers who need those should choose an analyzer centered on reporting or classification. The vendor describes packages for Windows and Linux, and macOS packages are available, though the README says the macOS build has not yet been tested. Choose SpaceBrowser for free, cross-platform treemap exploration and basic cleanup; look elsewhere if dependable macOS support or analytical reports are priorities.

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SpaceBrowser pricing

SpaceBrowser fact sheet

Alternatives to SpaceBrowser

• 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 SpaceBrowser alternatives →

Featured on iTechGuides

SpaceBrowser is listed in our Disk Space Analyzers directory. Add the badge to your site — it links back to this page.

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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

Last updated 7 Oct 2026 · How we research and update