Optimized Storage in macOS Sierra and later* can save space by storing your content in iCloud and making it available on demand. When storage space is needed, files, photos, movies, email attachments, and other files that you seldom use are stored in iCloud automatically. Each file stays right where you last saved it, and downloads when you open it. Files that you've used recently remain on your Mac, along with optimized versions of your photos.
* If you haven't yet upgraded to macOS Sierra or later, learn about other ways to free up storage space.
Find out how much storage is available on your Mac
When buying a new Apple Mac you have the option to buy three different types of storage: a Hard drive, Flash storage (also known as an SSD, or Solid State Drive) or a Fusion Drive. When Apple added its storage management feature to macOS Sierra and newer, called Optimize Storage, it reorganized what 'other' storage is and where it's located on the Mac. Much of it has been divided out through other categories so it's easier to find and remove. The 100GB of Other storage I used to carry on my iMac is whittled down to just 5GB.
Choose Apple menu > About This Mac, then click Storage. Each segment of the bar is an estimate of the storage space used by a category of files. Move your pointer over each segment for more detail.
Click the Manage button to open the Storage Management window, pictured below. This button is available only in macOS Sierra or later.
Manage storage on your Mac
The Storage Management window offers recommendations for optimizing your storage. If some recommendations are already turned on, you will see fewer recommendations.
Store in iCloud
Flash Storage Vs Ssd Apple
Click the Store in iCloud button, then choose from these options:
- Desktop and Documents. Store all files from these two locations in iCloud Drive. When storage space is needed, only the files you recently opened are kept on your Mac, so that you can easily work offline. Files stored only in iCloud show a download icon , which you can double-click to download the original file. Learn more about this feature.
- Photos. Store all original, full-resolution photos and videos in iCloud Photos. When storage space is needed, only space-saving (optimized) versions of photos are kept on your Mac. To download the original photo or video, just open it.
- Messages. Store all messages and attachments in iCloud. When storage space is needed, only the messages and attachments you recently opened are kept on your Mac. Learn more about Messages in iCloud.
Storing files in iCloud uses the storage space in your iCloud storage plan. If you reach or exceed your iCloud storage limit, you can either buy more iCloud storage or make more iCloud storage available. iCloud storage starts at 50GB for $0.99 (USD) a month, and you can purchase additional storage directly from your Apple device. Learn more about prices in your region.
Optimize Storage
Click the Optimize button, then choose from these options.
- Automatically remove watched movies and TV shows. When storage space is needed, movies or TV shows that you purchased from the iTunes Store and already watched are removed from your Mac. Click the download icon next to a movie or TV show to download it again.
- Download only recent attachments. Mail automatically downloads only the attachments that you recently received. You can manually download any attachments at any time by opening the email or attachment, or saving the attachment to your Mac.
- Don't automatically download attachments. Mail downloads an attachment only when you open the email or attachment, or save the attachment to your Mac.
Optimizing storage for movies, TV shows, and email attachments doesn't require iCloud storage space.
Empty Trash Automatically
Empty Trash Automatically permanently deletes files that have been in the Trash for more than 30 days.
Reduce Clutter
Reduce Clutter helps you to identify large files and files you might no longer need. Click the Review Files button, then choose any of the file categories in the sidebar, such as Applications, Documents, Music Creation, or Trash.
You can delete the files in some categories directly from this window. Other categories show the total storage space used by the files in each app. You can then open the app and decide whether to delete files from within it.
Learn how to redownload apps, music, movies, TV shows, and books.
Where to find the settings for each feature
Mac Storage Drive
The button for each recommendation in the Storage Management window affects one or more settings in other apps. You can also control those settings directly within each app.
- If you're using macOS Catalina, choose Apple menu > System Preferences, click Apple ID, then select iCloud in the sidebar: Store in iCloud turns on the Optimize Mac Storage setting on the right. Then click Options next to iCloud Drive: Store in iCloud turns on the Desktop & Documents Folders setting. To turn off iCloud Drive entirely, deselect iCloud Drive.
In macOS Mojave or earlier, choose Apple menu > System Preferences, click iCloud, then click Options next to iCloud Drive. Store in iCloud turns on the Desktop & Documents Folders and Optimize Mac Storage settings. - In Photos, choose Photos > Preferences, then click iCloud. Store in iCloud selects iCloud Photos and Optimize Mac Storage.
- In Messages, choose Messages > Preferences, then click iMessage. Store in iCloud selects Enable Messages in iCloud.
- If you're using macOS Catalina, open the Apple TV app, choose TV > Preferences from the menu bar, then click Files. Optimize Storage selects 'Automatically delete watched movies and TV shows.'
In macOS Mojave or earlier, open iTunes, choose iTunes > Preferences from the menu bar, then click Advanced. Optimize Storage selects 'Automatically delete watched movies and TV shows.' - In Mail, choose Mail > Preferences from the menu bar, then click Accounts. In the Account Information section on the right, Optimize Storage sets the Download Attachments menu to either Recent or None.
Empty Trash Automatically: From the Finder, choose Finder > Preferences, then click Advanced. Empty Trash Automatically selects 'Remove items from the Trash after 30 days.'
Other ways that macOS helps automatically save space
With macOS Sierra or later, your Mac automatically takes these additional steps to save storage space: Picsart software download.
- Detects duplicate downloads in Safari, keeping only the most recent version of the download
- Reminds you to delete used app installers
- Removes old fonts, languages, and dictionaries that aren't being used
- Clears caches, logs, and other unnecessary data when storage space is needed
How to free up storage space manually
Even without using the Optimized Storage features of Sierra or later, you can take other steps to make more storage space available:
- Music, movies, and other media can use a lot of storage space. Learn how to delete music, movies, and TV shows from your device.
- Delete other files that you no longer need by moving them to the Trash, then emptying the Trash. The Downloads folder is good place to look for files that you might no longer need.
- Move files to an external storage device.
- Compress files.
- Delete unneeded email: In the Mail app, choose Mailbox > Erase Junk Mail. If you no longer need the email in your Trash mailbox, choose Mailbox > Erase Deleted Items.
Learn more
- The Storage pane of About This Mac is the best way to determine the amount of storage space available on your Mac. Disk Utility and other apps might show storage categories such as Not Mounted, VM, Recovery, Other Volumes, Free, or Purgeable. Don't rely on these categories to understand how to free up storage space or how much storage space is available for your data.
- When you duplicate a file on an APFS-formatted volume, that file doesn't use additional storage space on the volume. Deleting a duplicate file frees up only the space required by any data you might have added to the duplicate. If you no longer need any copies of the file, you can recover all of the storage space by deleting both the duplicate and the original file.
- If you're using a pro app and Optimize Mac Storage, learn how to make sure that your projects are always on your Mac and able to access their files.
When you check the storage on your Mac, you might see a significant percentage of space occupied by something called ‘Other.' macOS does not go into much detail. You may wonder what is Other storage on Mac, why it eats up so much space, and how can I delete it? Let me help by telling you more about this to free space on your Mac.
How to Check Storage on Mac
- Click on the Apple logo from the top-left and choose About This Mac.
- Click on Storage. Wait for a few seconds.
- Take the mouse pointer to colored sections. You will see how much space is occupied by different categories like Apps, Photos, System, Trash, Other, etc.
What is Other on Mac Storage?
Just like the ‘Other' on iPhone and iPad, it is home to several files, cached data, and more. This section houses a mix of junk and important files.
In the simplest of terms, the 'Other' category is a combination of files that are not recognized as one of the other file types. Here are some examples:-
- Common documents and file types, including PDF, doc, PSD, etc.
- Any type of archives and disk images, including zips, dmg, iso, tar, etc.
- Files in the system folders of macOS, including temporary files, swap, voices, etc.
- Application Support files, iCloud files, Screensavers, etc.
- Cache items, including browser cache and locally stored message media files.
- Fonts, app accessories, application plugins, and app extensions.
- Various file and file types not recognized by Spotlight, for example, a virtual machine hard drive, Windows Boot Camp partitions, etc.
How to Delete Other on Mac Storage
Delete Cache Files on Mac
In typical situations, you do not need to worry much about cache. macOS handles them smartly. But if you are too low on storage or believe in having the cache of unused/uninstalled apps, here is how to delete them.
Note: Caches are there to make your Mac experience better and faster. Make sure you remove only the unnecessary ones.
- From Finder, click on Go.
- Press the option key. You will see a new option for the Library. Click on it.
- Click on Caches.
- Right-click on unnecessary app/service folders and choose Move to Trash.
- Right-click on the Trash icon and choose Empty Trash.
Note + Tip: With regular use, macOS will recreate these caches. If you do not understand what to delete, go back and copy the entire Caches folder to desktop (for backup). Next, open the Caches folder, press Command + A, right-click, and then Move to Trash. Finally, empty the Trash. See if everything works properly or not. In case not, copy the contents of the backup Caches folder from desktop inside the actual Caches folder.
Clearing browser cache and website files for Safari also reduce the Other storage.
Clear Temporary Files Located in Other Storage on Mac
- From Finder, click on Go.
- Press the option key.
- Click on Library.
- Click on Application Support.
- Delete files from here that you do not need. For example, old app folders that you do not need or have.
Remove Safari Extensions on Mac
At times, we install a browser extension for a purpose, and then do not reuse them or simply forget that it exists. The extension continues to occupy space (shown differently than the application itself. It is thus categorized under Other)
To remove an extension:
- Safari: Open Safari → Click on Safari from top left → Preferences → Extensions → Click on an extension → Choose Uninstall.
- Chrome: Open Chrome → Extensions icon (puzzle icon next to account picture) → Manage Extensions → Remove those you do not use.
Remove Old Downloads
Downloads are usually saved in the Downloads folder (unless you changed them). We often download .dmg files, large packages, videos, zip files, and leave them there. For example, many people do not delete the .dmg file even after app installation. Same for zip files.
- Open Finder and click on Downloads from the left sidebar.
- Click on the word ‘Size' to arrange the items by size. This will help you locate the large files quickly.
- To delete, right-click on the file and choose Move to Trash. You may also select the files(s) and press Command + Delete.
Tip: Use Spotlight Search to search for big file types like – .dmg, .zip, .mp4, .mkv, .avi, etc. Then click on Show all in Finder… from the lower-left of the Spotlight Search screen. Next, you can delete them easily.
Delete Unnecessary iPhone and iPad Backups
iOS and iPadOS device backups might run into various gigabytes. If you have several archived backups or unnecessary backups of old devices, make sure to delete them.
- Click on the Apple logo and choose About This Mac.
- Click on Storage → Manage.
- Select iOS Files from the sidebar.
- Click on the files and choose Delete.
Apple Mac Flash Storage Mac
Note: If you accidentally delete a backup, go ahead and easily create a new one now.
Delete Unused Applications
Applications, when combined with their data, folders, etc. might be vast and occupy significant space. If you have several apps that are sitting idle, go ahead and delete them. Additionally, remove macOS install files, if any.
- Click on the Apple logo from the top-left and choose About This Mac.
- Click on Storage. Next, click on Manage.
- Select Applications from the sidebar.
- Click on an unnecessary one and then click on Delete.
Note: You may also use apps like App Cleaner for perfect uninstallation.
Use Third-Party Software to Free Storage on Your Mac
Apart from the inbuilt solutions, several third-party apps do almost the same thing but in an easier way. You launch them, and in a minute or so, they will help you free significant space. The interface for most is visually pleasing. If you have difficulty following the above methods, you may try one of the apps listed below.
Apple Store Flash Drive
- DaisyDisk ($9.99)
- Onyx (free)
- CleanMyMac (free download with paid version $39.95)
Signing Off…
These are some of the effective ways to delete Other storage on Mac. As stated earlier, it has lots of useful files, too (that are different from listed categories). Thus it is tough to remove Otherdata entirely. But the above ways, help you declutter it. Next, it would be an excellent idea to know how to use optimized storage on Mac.
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I have been an Apple user for over seven years now. At iGeeksBlog, I love creating how-tos and troubleshooting guides that help people do more with their iPhone, iPad, Mac, AirPods, and Apple Watch. In my free time, I like to watch stand up comedy videos, tech documentaries, news debates, and political speeches.
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