💡 Pick it for the fastest, clearest visual overview of what is consuming space on a Mac.
DaisyDisk is a disk space analyzer for Mac that visualizes hard drive usage and helps free up disk space.
Best WhatSizeMac Alternatives ranked by AI · updated Aug 2026
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WhatSize is a macOS disk-usage analyzer for users who need to locate large files, folders, and duplicate data. It provides detailed storage reports, visualizations, and cleanup-oriented analysis across local and connected volumes.
Top 6 WhatSizeMac alternatives
💡 Choose it for a free, open-source treemap with more customization than most basic disk analyzers.
GrandPerspective is a small utility application for Mac OS X that graphically shows the disk usage within a file system.
💡 Pick it for a free, no-frills ranked list of the largest folders and files.
OmniDiskSweeper is a disk cleaning utility for MacOS that helps you find and remove large files taking up disk space.
💡 Use it for a free, basic treemap when WhatSize's reporting and cleanup features are unnecessary.
Disk Inventory X is a disk usage utility for Mac OS X that shows the sizes of files and folders in a...
5
ncdu
Yorhel
💡 Choose it for a fast, scriptable terminal workflow or remote storage analysis.
ncdu is a terminal-based disk usage analyzer for Unix-like systems, including Linux and macOS. Its keyboard-driven interface is efficient over SSH and...
Pros
- Works especially well over SSH and on headless servers
- Much lighter and more scriptable than Baobab
- Keyboard navigation is efficient for experienced administrators
Cons
- No graphical charts or treemap view like Baobab
- Less approachable for users unfamiliar with terminal interfaces
- Limited filtering and reporting compared with TreeSize
💡 Pick it if you need a free cross-platform storage report with charts and file-type breakdowns.
JDiskReport is a disk space analysis tool that helps you visualize your disk usage to free up space and improve performance.
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