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Requires macOS 10.13 or higher
Supported macOS versions:
macOS 10.13 High Sierra - macOS 15 Sequoia
Latest Version:
Disk Diet 5.6.1
Release Date:
January 14, 2025
Pricing:
One time purchase, with no subscription.
Running out of disk space is a challenge most Mac users face at some point. Searching for files to safely remove can be time-consuming and frustrating, especially when sifting through countless folders. Disk Diet makes it easy, scanning your drive in under a minute to free up gigabytes of wasted space by targeting areas like:
• Application Logs
• System Logs
• Caches
• Trash
• Downloads
• Mail Downloads
• Old iOS Software Updates
• Unused applications
• Unused language translations from applications
• Developer Folders from Xcode
• iPhoto Trash
To ensure optimal performance, Disk Diet is built as a Universal Binary 2, running natively on both Intel and Apple silicon Macs.
Originally released in 2011, Disk Diet was the first disk cleaning app for macOS and has been continuously updated for more than a decade. Now fully compatible with macOS 15 Sequoia and Apple silicon, it continues to be the trusted choice for Mac users. With a MacWorld GEM award, and over 100,000 downloads, Disk Diet remains the premier disk utility every Mac user needs.
Join thousands of Mac users who rely on Disk Diet to keep their storage clean and efficient. Download the free trial today!
Disk Diet can safely clean up to 10 different areas without any type of manual searching or locating. This includes:
Disk Diet is extremely fast because it uses Grand Central Dispatch (GCD), a technology in macOS that allows the use of every single CPU core.
During a clean, the only limiting factor is the speed of the drive.
With a modern SSD, it only takes about 10-20 seconds to scan and determine which files can be removed to free up space.
It's likely right now that there are gigabytes of space on your Mac that are being taken up by files that are either forgotten or hard to find.
See the handy space bar at the top of Disk Diet that displays stats about the drive along with how much of the used space is junk and can be safely freed up.
Once common source of wasted space is applications that haven't been used in a long time. Disk Diet gives the option to automatically select applications that haven't been used:
Disk Diet has been localized for eight languages to ensure that it's clear what each area is for before cleaning anything. Just click the help icon on the right of an area to get a helpful popover.
Disk Diet is available in:
Disk Diet is designed to look and perform great, whether you’re using dark mode or light mode. It runs seamlessly on macOS 10.13 High Sierra all the way up to macOS 15 Sequoia.
As a Universal Binary, it’s optimized to run natively on both Intel and Apple Silicon Macs, ensuring top-notch speed and efficiency.
For macOS 10.15 Catalina and later, Disk Diet is notarized by Apple for malware-free assurance and protected by the Hardened Runtime, guaranteeing the app’s authenticity and integrity from Tunabelly Software.
Disk Diet is easy to use, with in-app prompts on how to set everything up so there isn't an in-depth tutorial.
Here are some helpful tips to help out:
We've been updating and adding new features to Disk Diet since it originally launched in 2011. It was one of the first apps on the Mac App Store! Since then we've had hundreds of thousands of downloads and tons of positive reviews. It's constantly updated (see latest release notes) with fixes, improvements and new features. Plus we offer great support and always try our best to solve an issues or questions that arise.
Disk Diet has an average of 4.6 stars on MacUpdate.
Save 60%
One-time payment
Requires macOS 10.13 or higher
Supported macOS versions:
macOS 10.13 High Sierra - macOS 15 Sequoia
Latest Version:
Disk Diet 5.6.1
Release Date:
January 14, 2025
Pricing (USD):
One time purchase, with no subscription.
Free Apps For Me: Disk Diet Review
Softpedia: Users give Disk Diet 4.8 out of 5 rating
TekSocialVideo: Video Review
Macworld: Disk Diet is a Mac App of the Week
Disk Diet digs into Mac files you may not need and frees up a lot of storage; I’m talking about gigabytes of storage the first time you use it. Noodle Mac : Disk Diet Review
Basic Clean
Full Clean + Help
Developer Built Files (from Xcode)
Extra Languages
Unused Applications
Basic Clean
Full Clean + Help
Developer Built Files (from Xcode)
Extra Languages
Unused Applications
Disk Diet