Storage Map vs GrandPerspective: Modern Mac Treemaps Compared

Where they overlap

Both products make large files visually obvious with a rectangular treemap, run locally, and let you reveal items in Finder. Both are current Mac applications rather than abandoned compatibility tools.

Reasons to choose GrandPerspective

• It is open source under the GPL
• The direct download is free, with an inexpensive App Store option
• You want a focused, configurable treemap utility
• You need support for Intel Macs or older macOS versions covered by its releases

Reasons to choose Storage Map

• You want a folder list and treemap designed as one navigation experience
• You want allocated/apparent size switching and hardlink-aware accounting
• You want capacity monitoring and 90-day local history in the menu bar
• You want typed-confirmation permanent deletion and changed-file identity checks
• You want a related terminal interface in the Direct Edition