Disk Space Visualizer

165 tools in the catalog under features.

A disk space visualizer answers “why is my disk full” before anything is deleted. The view is the product: a treemap, sunburst, or sorted breakdown that makes the biggest folders and files visible at a glance. Many pair the map with a delete button, but the analysis comes first and the decision of what to remove stays with the user.

That posture makes the category the catalog’s low-risk entry point. A visualizer needs read access to directory metadata, not blanket permission to delete, so a bad one wastes a few dollars instead of your files. It is also the most crowded feature in the catalog. A scanner is the cheapest credible product to build, which is why most of the 2026 wave of new apps opened with one.

Boundary notes, because several neighbors look similar: a storage tracker watches space over time (scan-over-scan diffs, menu-bar meters) rather than mapping where it went, a file organizer rearranges files instead of reporting on them, and a tool that leads with deletion lands under its own features even when it ships a visualizer too.

Last reviewed 2026-11-02

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