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WhatSize allows you to quickly measure the size in bytes of a given folder and all subfolders and files within it. You would be surprised at how many useless files might be laying around on your hard disks. The files and folders are automatically sorted by size, with the biggest sizes first. WhatSize helps find out what files are taking up all of that space. Then it makes it really easy to remove or move those files. You'd be surprised how many useless files are lying around on your Mac's hard disk.

While the app is measuring a folder the user can browse the files within that folder and immediately see the size in

What's New

Version 6.5.3:
  • Updated to support macOS 10.12 Sierra


  • OS X 10.8 or later

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WhatSize User Discussion

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3.1 143


Current Version (6.x)


Downloads 224,044
Version Downloads 1,313
License Shareware
Date 26 Sep 2016
Platform Intel 64 / OS X
Price $29.99
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