Developer: ID-DESIGN INC.

Current Version: 5.3.2

Last Updated: 3 years ago

Download Size: 4.3 MB - Download


WhatSize is a file system utility that allows you to quickly view and reclaim disk space.

WhatSize quickly measures the size of your hard drive and allows you to sort, filter, and refine the results. The files and folders are automatically sorted by size with the biggest sizes first.

A visual display of the contents of your hard drive that enables you to drill-down and discover how your disk space is being used.

Intelligent tools that suggest ways you can reclaim disk space. Such as unused language locales, unused binary portions from universal applications, etc.

Identifies duplicate files on your system so that you can remove them. You would be surprised at how many useless files might be laying around on your hard drive.


Release Notes:

WhatSize is now compatible with Apple's GateKeeper Technology for downloads outside Mac App Store.
Addressed issuse where the file names started with '.Trash'.
Addressed rare crash when moving duplicates into the Trash.
Addressed issue of incorrect Trash icon.
Addressed incorrect size formatting when exporting as CSV.
Addressed file size calculations in Mountain Lion.
Add column sorting on TableView mode when displaying duplicates.
Optimized file path sorting by using Grand Central Dispatch.
Added FileName column on TableView mode.
Added right click "Selection Size" to display detailed information.
Addressed automatic graphics context switch to conserve battery time on laptops.


Most Helpful Reviews

Version 5.2.1
Review by nimartin28

Great app but don't buy from the app store! - I has having the usual problem of trying to clear space on my hard drive. I purchased this from the app store and while I was extremely happy with the detail, design, etc. it could not report on my other user accounts on the same computer because Apple apparently doesn't approve apps that run as root. If you buy the app directly from the developer, it will do that, which, for me, makes it more useful. Either way, fast app, very intuitive interface and did exactly what I wanted to do, which is clear up much-needed hard drive space.

Found helpful by 12 out of 12 people
Version 5.3.2
Review by docgarner

Bait and Switch - Learn from my mistake. This is a version they’ve downgraded so that it can no longer scan as root. It’s a full version number and then-some behind the actual current version on their website. Once you buy this, you’ll learn that it costs an extra $15 to upgrade to the current version of the program. There are a dozen entirely free utilities that does what this version of the program does; the only prior advantage was that it could scan as root (to show hidden disk space usage) and this version absolutely does NOT do so. Save your money.

Found helpful by 29 out of 29 people

More Reviews for Current Version

Version 5.3.2
Review by AlohaKid808

WAS a great app... - This was my go to app for managing my HD till High Sierra and it no longer works. Website for product SEEMS to suggest that you can do an in app upgrade. That apparntly ONLY applies if you purchased the app directly from the site and have a key for version 5x. Purchased the upgrade and without a key for the app store version, it’s useless. Have made SEVERAL attempts to contact developed and NO response. Currently in PAYPAL resolutions and guess what, they have not heard from the developer either. Shame, LOVE this app but their customer service is NON-EXISTENT!

Found helpful by 8 out of 8 people
Version 5.3.2
Review by Chris M. Long

Top Notch - I bought this app, emailed a question to dev, received an immediate response, and a solution to my problem. This app is fast, clear, well designed, and very useful, especially with the newer/smaller SSDs, where space counts. I'd recommend this to anyone without hesitation. BUY IT!

Found helpful by 6 out of 7 people
Version 5.3.2
Review by mmckw

PLEASE ADD MULTIPLE WINDOW SUPPORT - This is a terrific app, but I would love a way to have multilpe windows open at a time– I have a bunch of old convoluted backups and it would be fantastic to be able to compare different file structures across multiple drives.

Found helpful by 5 out of 6 people
Version 5.3.2
Review by reefbreak10

Paid, but won’t download. - What more to say?

Found helpful by 4 out of 5 people
Version 5.3.2
Review by MtnBiker2001

Just what i was looking for! - Excellent program. If you’re a pc convert like myself and looking for a program like Treesize for the pc, this is it. Found a duplicate movie on the hd right away, have no idea how i ended with two of the same one. Also has a “find duplicates” mode too. Kinda cool to see how things are structured in the mac world of hard drives. Anyway great $15 spent.

Found helpful by 4 out of 4 people