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
Hello, For the past month or so, my Macbook has been bombarding me with 'running out of space' messages. I have read countless articles and forums, but I still have not solved the issue. System takes up 90 GB of my 120 GB. I tried downloading DaisyDisk and OmniDiskSweeper, but they only show. Normally when you plug in an external hard drive to your Mac's USB port you will see it appear on the desktop (aka mount on the desktop). You can also see it in the Finder in the left column under. To see how much free space you have on your Mac, click the Apple icon in the top-left corner, and then click About This Mac. Click the 'Storage' tab to see a breakdown of your current disk usage. You can then free up space on your Mac.
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- 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.
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.
- DaisyDisk ($9.99)
- Onyx (free)
- CleanMyMac (free download with paid version $39.95)
Signing Off…
Mac Storage Full
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.
You may also read:
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.
- https://www.igeeksblog.com/author/ankur/How to Turn ON or OFF Facebook Nearby Friends on iPhone
- https://www.igeeksblog.com/author/ankur/How to Reset Hosts File to Default on Mac and Windows PC
- https://www.igeeksblog.com/author/ankur/
- https://www.igeeksblog.com/author/ankur/How to Turn off Unread Mail Count in Mail App on iPhone
'No matter what I do, my Mac is still slow', an average tech-consultant hears this phrase multiple times a day. Give a person even the most powerful computer, and pretty soon it will be cluttered with apps, extensions, and things that are too much for it to handle. To reverse it, one has to go back and сlean up the mess, removing memory agents one by one. Prepare for a fight — every byte of memory is at stake. So let's put your Mac on a diet and get it more free RAM to breathe freely.
First, remove desktop clutter. Get a combination of Setapp apps that clear away unneeded desktop files.
Download Declutter Free'Your system has run out of application memory'
How do you know your Mac is low on memory? Floating 'rainbow wheels' aside, you may notice your Mac now takes ages to load. You'll also see many browser applications crashing. You'll be also thrown warning messages as 'Your system has run out of application memory'. To help it, you should first visit the Activity monitor to see memory usage on Mac.
How to check RAM usage on Mac
Go to Applications and type in Activity Monitor in the search bar. This invokes a good old Activity Monitor that should tell how much free memory you've got left.
A shortcut to open Activity Monitor:
Press F4 and start typing Activity Monitor in the search bar.
I've attached a screenshot from my Mac and as you can see my memory usage almost reached full capacity. Here's what it all means:
App memory: taken by apps and processes
Wired memory: reserved by apps, can't be freed up
Compressed: inactive, can be used by other apps
Swap used: memory used by macOS
Cached files: memory you can really use
Notice the colored graph under Memory Pressure. If your graph is all but red and yellow, your Mac is really gasping for fresh memory. It seems counter-intuitive, but 'available memory' your Activity Monitor is not that important after all. In fact, it's a system intended behavior to use all memory resources when available. On the contrary, the Memory Pressure graph is much more telling, so grow a habit to check this graph in the Activity Monitor every now and then.
How to check CPU usage on Mac
Open the CPU tab in Activity Monitor to keep in check CPU-heavy processes. Normally an app would be using 0-4% of CPU. If it takes abnormally more than that, go inside that particular item in the list and press the Quit button.
How to free up memory on Mac
Tip # 1. Remove Login Items to lower Mac memory usage
Login items are programs that load automatically upon Mac startup. Some of them covertly add themselves to the list and this is no good. If you're looking to free up RAM, they are the first candidates for deletion. Don't worry, you're not deleting the app itself, you just stop it from auto-launching every time.
So, to remove Login Items and at the same time reduce your memory usage of your Mac, you need to:
- Open System Preferences and select Users & Groups.
- Click your nickname on the left.
- Select the Login Items tab.
- Check programs you don't want to load as your Mac starts.
- Press the '–' sign below.
Now, you won't see these apps pop up the moment you turn on your Mac. Although this method doesn't require some superpowers of yours, some special Mac optimization and memory cleaner tools may do the job faster and ensure the smooth performance of your Mac. CleanMyMac X is an excellent example of such software. Here's how to disable Login Items with CleanMyMac X:
- Download it for free and go to the Optimization tab.
- Check Login Items to see the list of apps that get opened when you start your Mac.
- Click Remove.
As you've already come to the Optimization module of CleanMyMac, you can also fix hung apps and heavy memory consumers there. In this way, you'll free up the solid amount of RAM on Mac — 100% free of charge.
Tip # 2. Free up disk space if Mac is low on memory
The available space on your Mac's drive translates into virtual memory. This comes to save you when you've run out of physical RAM. So now your computer relies on your hard drive space to keep your apps going.
The classic geek rule of thumb holds it that you should keep at least 20% of disk space on your startup drive. Not only this potentially reduces your future spending on iCloud storage but it also keeps your Mac speedier.
What to delete to free up space:
Macbook Air Storage Full
- Large unused files, like movies
- Old downloads
- Rarely used applications
- System junk
But here's a simpler solution to save your time — clean up your drive with CleanMyMac X— the app I've mentioned above. Many users recommend it as an excellent way to free up more space because it searches for large & old files, useless system files, Photo junk, mail attachments and shows everything you can safely delete. Interestingly, it finds about 74 GB of junk on an average computer.
Extra trick: How to free up RAM on Mac with CleanMyMac X
If you have downloaded CleanMyMac, you may also take advantage of its amazing feature — the ability to free up RAM in a few seconds. Try this next time you see 'Your system has run out of application memory' message.
- Go to the Maintenance tab on the left.
- Click Free Up RAM.
- Click Run.
System Storage Mac
As simple as that!
And you can do it even if you download a free version of the app.
Tip # 3. Clean up your Desktop
This tip always comes at the bottom of instructions and unfairly so as it is quite effective. Without even looking at your Desktop I would assume it's cluttered with mountains of icons. Thing is, your macOS was designed in a way that it treats every Desktop icon as a little active window. The more icons, the heavier memory usage on Mac. So in order to release available memory resources, it's recommended to keep your Desktop clean.
You don't have to do it all by yourself. With apps like Declutter and Spotless, every desktop cleaning session will be scheduled in advance and executed automatically. Your only job is to define the rules on how your files should be organized.
Tip #4. Clear cache files
Another way to free up RAM on Mac is to clear it of cache files. Of course, it won't save you gigabytes of space, but deleting cache regularly, you can help your Mac run faster and avoid system issues.
So, to remove cache files on your Mac, you need to:
- Open Finder.
- From the Go menu, select Go to Folder.
- Type ~/Library/Caches in the field and press Go.
- In the window that appears, you will see all your cache files.
- Press Command+A to select all files or delete files one by one.
- Enter your user name and password to confirm.
If you find some files still in the folder after you emptied it, maybe you have some windows open on your Mac. Just like that, you can save up some space on your Mac. Don't forget to empty the bin afterward.
Tip # 5. Tune up Chrome's Task Manager
Although Google Chrome is not the one to blame for massive memory usage, it can indeed affect your Mac's performance. If you use Chrome as your primary browser, you probably have many windows opened there. Chrome runs a lot of processes to ensure a fast browsing experience for you. So, it uses your RAM for storing your tabs, plugins, and extensions. Look at how many entries Google Chrome has in Activity Monitor:
The question then arises, 'Why does Chrome use so much RAM?' The thing is that each process is responsible for a separate plugin or extension of your browser. For example, when a tab unexpectedly falls, you need to refresh it to continue your work there. If one process were responsible for all tabs and extensions, you would need to restart the whole browser instead. Can you imagine how many times would you do that? That's the proper answer to why Chrome uses so much RAM.
I've been using Chrome for some years only to discover (recently) that Chrome had a task manager of its own. You can use it to force quit memory-heavy processes in the browser. It's a handy tool because it lets you see how a page weighs on CPU usage on a Mac.
- Go to Chrome settings (dotted icon in the top right corner)
- Click More tools -> Task Manager
To free up even more RAM, close the GPU process. The GPU Process, though helpful in theory to accelerate pages, eats up a considerable amount of memory. Click to end it to free up RAM on your Mac.
Tip # 6. Manage RAM usage with CleanMyMac X menu
CleanMyMac X has another useful and convenient feature for managing your Mac's performance and memory usage. As you install CleanMyMac X and start it for the first time, it's icon will appear in your menu bar. Click the icon to open the CleanMyMac X menu. Here you can find updates on the current condition of your Mac and perform quick tweaks to increase your Mac's speed. Whenever you feel like your Mac underperforms, open the CleanMyMac X menu to check how much RAM is available and free it up as well. Convert mac to pc files.
Tip # 7. Close Finder windows
Okay, suppose you're still asking yourself, how do I clear RAM on my MacBook Pro/MacBook Air. The next trick is as magical (you'll see for yourself) as it is time-saving. It's no secret that each window in the Finder eats up RAM. But how many open windows are there? Some of them are collapsed or stacked in some blind spot on your screen. This Finder command merges all your windows into one. See how to do it:
Click on Finder > Window > Merge All Windows
Now you can manage Finder windows more effectively and free up memory on MacBook.
What else you can do to minimize memory usage on Mac
- 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.
- DaisyDisk ($9.99)
- Onyx (free)
- CleanMyMac (free download with paid version $39.95)
Signing Off…
Mac Storage Full
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.
You may also read:
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.
- https://www.igeeksblog.com/author/ankur/How to Turn ON or OFF Facebook Nearby Friends on iPhone
- https://www.igeeksblog.com/author/ankur/How to Reset Hosts File to Default on Mac and Windows PC
- https://www.igeeksblog.com/author/ankur/
- https://www.igeeksblog.com/author/ankur/How to Turn off Unread Mail Count in Mail App on iPhone
'No matter what I do, my Mac is still slow', an average tech-consultant hears this phrase multiple times a day. Give a person even the most powerful computer, and pretty soon it will be cluttered with apps, extensions, and things that are too much for it to handle. To reverse it, one has to go back and сlean up the mess, removing memory agents one by one. Prepare for a fight — every byte of memory is at stake. So let's put your Mac on a diet and get it more free RAM to breathe freely.
First, remove desktop clutter. Get a combination of Setapp apps that clear away unneeded desktop files.
Download Declutter Free'Your system has run out of application memory'
How do you know your Mac is low on memory? Floating 'rainbow wheels' aside, you may notice your Mac now takes ages to load. You'll also see many browser applications crashing. You'll be also thrown warning messages as 'Your system has run out of application memory'. To help it, you should first visit the Activity monitor to see memory usage on Mac.
How to check RAM usage on Mac
Go to Applications and type in Activity Monitor in the search bar. This invokes a good old Activity Monitor that should tell how much free memory you've got left.
A shortcut to open Activity Monitor:
Press F4 and start typing Activity Monitor in the search bar.
I've attached a screenshot from my Mac and as you can see my memory usage almost reached full capacity. Here's what it all means:
App memory: taken by apps and processes
Wired memory: reserved by apps, can't be freed up
Compressed: inactive, can be used by other apps
Swap used: memory used by macOS
Cached files: memory you can really use
Notice the colored graph under Memory Pressure. If your graph is all but red and yellow, your Mac is really gasping for fresh memory. It seems counter-intuitive, but 'available memory' your Activity Monitor is not that important after all. In fact, it's a system intended behavior to use all memory resources when available. On the contrary, the Memory Pressure graph is much more telling, so grow a habit to check this graph in the Activity Monitor every now and then.
How to check CPU usage on Mac
Open the CPU tab in Activity Monitor to keep in check CPU-heavy processes. Normally an app would be using 0-4% of CPU. If it takes abnormally more than that, go inside that particular item in the list and press the Quit button.
How to free up memory on Mac
Tip # 1. Remove Login Items to lower Mac memory usage
Login items are programs that load automatically upon Mac startup. Some of them covertly add themselves to the list and this is no good. If you're looking to free up RAM, they are the first candidates for deletion. Don't worry, you're not deleting the app itself, you just stop it from auto-launching every time.
So, to remove Login Items and at the same time reduce your memory usage of your Mac, you need to:
- Open System Preferences and select Users & Groups.
- Click your nickname on the left.
- Select the Login Items tab.
- Check programs you don't want to load as your Mac starts.
- Press the '–' sign below.
Now, you won't see these apps pop up the moment you turn on your Mac. Although this method doesn't require some superpowers of yours, some special Mac optimization and memory cleaner tools may do the job faster and ensure the smooth performance of your Mac. CleanMyMac X is an excellent example of such software. Here's how to disable Login Items with CleanMyMac X:
- Download it for free and go to the Optimization tab.
- Check Login Items to see the list of apps that get opened when you start your Mac.
- Click Remove.
As you've already come to the Optimization module of CleanMyMac, you can also fix hung apps and heavy memory consumers there. In this way, you'll free up the solid amount of RAM on Mac — 100% free of charge.
Tip # 2. Free up disk space if Mac is low on memory
The available space on your Mac's drive translates into virtual memory. This comes to save you when you've run out of physical RAM. So now your computer relies on your hard drive space to keep your apps going.
The classic geek rule of thumb holds it that you should keep at least 20% of disk space on your startup drive. Not only this potentially reduces your future spending on iCloud storage but it also keeps your Mac speedier.
What to delete to free up space:
Macbook Air Storage Full
- Large unused files, like movies
- Old downloads
- Rarely used applications
- System junk
But here's a simpler solution to save your time — clean up your drive with CleanMyMac X— the app I've mentioned above. Many users recommend it as an excellent way to free up more space because it searches for large & old files, useless system files, Photo junk, mail attachments and shows everything you can safely delete. Interestingly, it finds about 74 GB of junk on an average computer.
Extra trick: How to free up RAM on Mac with CleanMyMac X
If you have downloaded CleanMyMac, you may also take advantage of its amazing feature — the ability to free up RAM in a few seconds. Try this next time you see 'Your system has run out of application memory' message.
- Go to the Maintenance tab on the left.
- Click Free Up RAM.
- Click Run.
System Storage Mac
As simple as that!
And you can do it even if you download a free version of the app.
Tip # 3. Clean up your Desktop
This tip always comes at the bottom of instructions and unfairly so as it is quite effective. Without even looking at your Desktop I would assume it's cluttered with mountains of icons. Thing is, your macOS was designed in a way that it treats every Desktop icon as a little active window. The more icons, the heavier memory usage on Mac. So in order to release available memory resources, it's recommended to keep your Desktop clean.
You don't have to do it all by yourself. With apps like Declutter and Spotless, every desktop cleaning session will be scheduled in advance and executed automatically. Your only job is to define the rules on how your files should be organized.
Tip #4. Clear cache files
Another way to free up RAM on Mac is to clear it of cache files. Of course, it won't save you gigabytes of space, but deleting cache regularly, you can help your Mac run faster and avoid system issues.
So, to remove cache files on your Mac, you need to:
- Open Finder.
- From the Go menu, select Go to Folder.
- Type ~/Library/Caches in the field and press Go.
- In the window that appears, you will see all your cache files.
- Press Command+A to select all files or delete files one by one.
- Enter your user name and password to confirm.
If you find some files still in the folder after you emptied it, maybe you have some windows open on your Mac. Just like that, you can save up some space on your Mac. Don't forget to empty the bin afterward.
Tip # 5. Tune up Chrome's Task Manager
Although Google Chrome is not the one to blame for massive memory usage, it can indeed affect your Mac's performance. If you use Chrome as your primary browser, you probably have many windows opened there. Chrome runs a lot of processes to ensure a fast browsing experience for you. So, it uses your RAM for storing your tabs, plugins, and extensions. Look at how many entries Google Chrome has in Activity Monitor:
The question then arises, 'Why does Chrome use so much RAM?' The thing is that each process is responsible for a separate plugin or extension of your browser. For example, when a tab unexpectedly falls, you need to refresh it to continue your work there. If one process were responsible for all tabs and extensions, you would need to restart the whole browser instead. Can you imagine how many times would you do that? That's the proper answer to why Chrome uses so much RAM.
I've been using Chrome for some years only to discover (recently) that Chrome had a task manager of its own. You can use it to force quit memory-heavy processes in the browser. It's a handy tool because it lets you see how a page weighs on CPU usage on a Mac.
- Go to Chrome settings (dotted icon in the top right corner)
- Click More tools -> Task Manager
To free up even more RAM, close the GPU process. The GPU Process, though helpful in theory to accelerate pages, eats up a considerable amount of memory. Click to end it to free up RAM on your Mac.
Tip # 6. Manage RAM usage with CleanMyMac X menu
CleanMyMac X has another useful and convenient feature for managing your Mac's performance and memory usage. As you install CleanMyMac X and start it for the first time, it's icon will appear in your menu bar. Click the icon to open the CleanMyMac X menu. Here you can find updates on the current condition of your Mac and perform quick tweaks to increase your Mac's speed. Whenever you feel like your Mac underperforms, open the CleanMyMac X menu to check how much RAM is available and free it up as well. Convert mac to pc files.
Tip # 7. Close Finder windows
Okay, suppose you're still asking yourself, how do I clear RAM on my MacBook Pro/MacBook Air. The next trick is as magical (you'll see for yourself) as it is time-saving. It's no secret that each window in the Finder eats up RAM. But how many open windows are there? Some of them are collapsed or stacked in some blind spot on your screen. This Finder command merges all your windows into one. See how to do it:
Click on Finder > Window > Merge All Windows
Now you can manage Finder windows more effectively and free up memory on MacBook.
What else you can do to minimize memory usage on Mac
I've saved the easiest tips for the end, as long as these ones are self-explanatory.
- Replace AdBlock (very memory-demanding) with a lighter extension
- Keep fewer opened tabs in the browser
- Restart your Mac more often to free up RAM
- Close all hung-up print queues
That was my take on how to make your Mac a bit speedier to use. If you're looking for more guidance, check simple ways to speed up your Mac.
Frequently Asked Questions
How to check application memory on Mac?
Mac System Storage Full
To check RAM usage on your Mac, go to Activity Monitor (Applications > Utilities). In the Memory tab, you will see all the active processes that are using your Mac's RAM. At the end of the window, there is a Memory Used graph, which indicates how much application memory is used.
How to find out whether your Mac needs more RAM?
Your Mac may be using almost all its RAM, but you don't need more if it's using it efficiently. Open Activity Monitor and go to the Memory tab. The Memory Pressure graph shows the current condition of your RAM: green color means your Mac's using RAM effectively, while yellow is a sign that some application or process is using too much of application memory. The red memory pressure signals that your Mac needs more RAM.
How to quickly free up RAM on your MacBook?
To free up RAM on your Mac, firstly, you should find out what app uses so much of your memory. The memory-heavy programs are listed in Activity Monitor, Memory tab. If there is an app you aren't using at the moment, click it and press the 'X' sign to quit it. This will, in turn, free some of the application memory
Mac Book Air Storage Full
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