SpaceBrowser review
A visual disk analyzer with a proportional treemap, scan controls, and cleanup actions.
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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.
SpaceBrowser pros and cons
- 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
SpaceBrowser fact sheet, pricing and score →
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