WhatSize is a file system utility that allows you with a chart display, to easily drill-down and discover how your disk space is being used. WhatSize measures the size of your hard drive and allows you to sort, filter, and refine the results. WhatSize will cache measurements for speed and will use Apple’s FSEvents to merge file system changes in real time.
Moreover, it also identifies duplicate files on your system so that you can move them to trash, replace them with hard links or simply delete them immediately.
Key Features:
- Fast performance
- Discover how your disk space is being used
- Clean up system unused files
- Identifies duplicate files on your system
- Filter Results
Last Update: October 19, 2025
Current Version: 8.2.4 / 6.5.3
License: Shareware
Languages: English
Supported Operating Systems:
Mac OS X 10.12 or later
Developer: ID-Design, inc.
Homepage: WhatSizemac.com
- Updated to support macOS Sierra.
Disclaimer: The direct download links for WhatSize are sourced from the official website of the author or developer, guaranteeing they are 100% original and unaltered. However, because the links are external, we cannot guarantee their safety, availability, or download speeds. We will research and find various download options for your software, including online installers, full offline installers (usually 'exe' or 'msi', 'dmg', and occasionally 'iso' or torrent), and portable editions (commonly 'zip' or 'rar').