Version: 4.9.6 || Release Date: 2010-07-12 || License: Shareware ($12.99) Developer: ID-Design, Inc. | App Owner: kumo

WhatSize is a simple tool that allows the user to quickly measure the size in bytes of a given folder and all subfolders and files within it.

Use it free as long as you wish or purchase a license for $12.99 to support development and have access to the System Administrator functionality.

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17 Opinions

After trying a lot of duplicate finder apps I found this one to work the best. It does a great job of keeping non power-users out of trouble and the developer support has helped turn me into a power user. I really like it and heavily rely on it to keep my Mac and external drives organized.

OmniDiskSweeper is what you're looking after, right now. Same job, Freeware.

Thank you, Omnigroup.

Here's the direct link to a freeware version:


I'll keep on using that one for now although 'Grand Perspective' and 'Disk Invernory X' do the trick too.

I understand that they want to earn some money for their efforts, it's probably a lot of work. The only thing that is really unacceptable is that the 'automatic update' function bumps you from free- to shareware version.


"Grand Perspective" is still free and beats this app in all ways i can think of...

10.3.91 can be found at zdnet (see version link)

4.1 crashes in Panther. Would like to be able to get 10.3.92 if anyone can tell me where.

I went back to 10.3.92 too. 10.4.1 is buggy and annoying.

if anyone is having trouble getting their hands on the last version (which was actually freeware) just leave a comment and i will upload it to badongo or something and put up a link.

On the website it does say that one can use it for free, but I have updated the information here to reflect the price and license change.

Also check Baseline (shareware): it scans your volume, then saves the results, so that you can see later which folders are bigger, and which are smaller.

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