Clean the drive & get more space for your Mac.

With a few clicks, let Disk Diet find files and folders you may not have known were taking up large amounts of space. Then put the drive on a diet and get back GBs of space!

Easily and quickly clean:

• Unused language translations from applications
• Unused applications
• Caches
• Downloads
• Mail Downloads
• Old iOS Software Updates
• Application Logs
• System Logs
• Developer Folders from Xcode
• iPhoto Trash
• Trash
• Choose which drive to put on a diet, including external USB drives.

We offer quick and easy support. If you have any issues, please email us and we will get back to you as soon as possible.

What's New

Version 5.4.3

[New] macOS 10.14 (Mojave) support including the new system wide Dark Mode.
[Fixed] Issue where the Unused Applications checkbox wouldn't be enabled in certain cases.
[Fixed] Potential crash on app startup.
[Fixed] Potential crash when choosing the folders.

Ratings and Reviews

4.3 out of 5
16 Ratings
16 Ratings
PHD in the 613 ,

Just works

Love this app. It’s my first go-to when my drive is getting tight on space, before even emptying the trash since it does that for you. Really effective at scouring the contents of all those directories under ~/Library that I don’t want to think about myself.

Flash Bruce ,

Helpful in tight situations :-)

I’m not sure that this gets rid of absolutely all things that are probably unnecessary for most people, but it does categorize them and give you simple choices.

Yoel2 ,

Disk Diet

It does what it’s supposed to do


Tunabelly Software Inc.
2.2 MB
OS X 10.10 or later, 64-bit processor
English, French, German, Italian, Japanese, Russian, Simplified Chinese, Spanish
Age Rating
Rated 4+
© 2018, Tunabelly Software Inc.


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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