GrandPerspective

The application presents a graphical view of a macOS file system using a tree‑map layout, where each file appears as a rectangle sized proportionally to its data. Files within the same directory are grouped together, allowing users to quickly identify the largest items on their drive. The interface includes a start window that guides initial use and tooltips that reveal full file paths when truncated in the progress panel.

It is aimed at macOS users who need to manage disk space, offering a visual method to locate space‑consuming files and folders without manual inspection. The tool supports multiple languages and checks for Full Disk Access, prompting the user when necessary to ensure accurate scanning.

The software is open‑source and distributed free of charge, with optional purchase through the App Store for automatic updates and Apple’s review compliance. Recent releases have added UI refinements, expanded translation sets, and improved reliability of disk‑access checks.