“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
The OverDrive Read app on Mac is actually a web browser supported software program, but it's on this list because it is the officially supported app for borrowing books from public libraries. Although you have to access the OverDrive Read on Mac from a web browser, you can download content for offline reading, listening, or watching. Native Mac apps built with Mac Catalyst can share code with your iPad apps, and you can add more features just for Mac. In macOS Big Sur, you can create even more powerful versions of your apps and take advantage of every pixel on the screen by running them at native Mac resolution. Apps built with Mac Catalyst can now be fully controlled using just the keyboard, access more iOS. Share non-Mac App Store apps. For a family that wants to share non-Mac App Store apps across macOS accounts, most apps purchased directly from a software company simply work, whatever account they. In the Activity Monitor app on your Mac, click Memory (or use the Touch Bar) to see the following in the bottom of the window. Memory Pressure: Graphically represents how efficiently your memory is serving your processing needs. Memory pressure is determined by the amount of free memory, swap rate, wired memory, and file cached memory.
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:
- 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.
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.
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?
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
These might also interest you:
Set Content & Privacy Restrictions
- Go to Settings and tap Screen Time.
- Tap Continue, then choose 'This is My [Device]' or 'This is My Child's [Device].'
- If you're the parent or guardian of your device and want to prevent another family member from changing your settings, tap Use Screen Time Passcode to create a passcode, then re-enter the passcode to confirm. In iOS 13.4 and later, after you confirm your passcode you'll be asked to enter your Apple ID and password. This can be used to reset your Screen Time passcode if you forget it.
- If you're setting up Screen Time on your child's device, follow the prompts until you get to Parent Passcode and enter a passcode. Re-enter the passcode to confirm. In iOS 13.4 and later, after you confirm your passcode you'll be asked to enter your Apple ID and password. This can be used to reset your Screen Time passcode if you forget it.
- Tap Content & Privacy Restrictions. If asked, enter your passcode, then turn on Content & Privacy.
Make sure to choose a passcode that's different from the passcode you use to unlock your device. To change or turn off the passcode on your child's device, tap Settings > Screen Time > [your child's name]. Then tap Change Screen Time Passcode or Turn Off Screen Time Passcode, and authenticate the change with Face ID, Touch ID, or your device passcode.
If you forgot your Screen Time passcode, update your device to the latest iOS or iPadOS then reset your passcode. If you can’t update your device, erase it and set it up as new to remove the passcode and choose a new one. Restoring your device from a backup won't remove your passcode.
Learn more about using Family Sharing with Screen Time.
Prevent iTunes & App Store purchases
You can also prevent your child from being able to install or delete apps, make in-app purchases, and more. To prevent iTunes & App Store purchases or downloads:
- Go to Settings and tap Screen Time.
- Tap Content & Privacy Restrictions. If asked, enter your passcode.
- Tap iTunes & App Store Purchases.
- Choose a setting and set to Don't Allow.
You can also change your password settings for additional purchases from the iTunes & App Store or Book Store. Follow steps 1-3, then choose Always Require or Don't Require.
Allow built-in apps and features
You can restrict the use of built-in apps or features. If you turn off an app or feature, it won’t delete it, it’s just temporarily hidden from your Home screen. For example, if you turn off Mail, the Mail app won't appear on your Home Screen until you turn it back on.
To change your Allowed Apps:
- Go to Settings > Screen Time.
- Tap Content & Privacy Restrictions.
- Enter your Screen Time passcode.
- Tap Allowed Apps.
- Select the apps that you want to allow.
Prevent explicit content and content ratings
You can also prevent the playback of music with explicit content and movies or TV shows with specific ratings. Apps also have ratings that can be configured using content restrictions.
To restrict explicit content and content ratings:
- Go to Settings and tap Screen Time.
- Tap Content & Privacy Restrictions, then tap Content Restrictions.
- Choose the settings you want for each feature or setting under Allowed Store Content.
Here are the types of content that you can restrict:
- Ratings For: Select the country or region in the ratings section to automatically apply the appropriate content ratings for that region
- Music, Podcasts & News: Prevent the playback of music, music videos, podcasts, and news containing explicit content
- Music Videos: Prevent finding and viewing music videos
- Music Profiles: Prevent sharing what you're listening to with friends and seeing what they're listening to
- Movies: Prevent movies with specific ratings
- TV shows: Prevent TV shows with specific ratings
- Books: Prevent content with specific ratings
- Apps: Prevent apps with specific ratings
Prevent web content
iOS can automatically filter website content to limit access to adult content in Safari and apps on your device. You can also add specific websites to an approved or blocked list, or you can limit access to only approved websites. Follow these steps:
Delete App On Mac
- Go to Settings > Screen Time.
- Tap Content & Privacy Restrictions and enter your Screen Time passcode.
- Tap Content Restrictions, then tap Web Content.
- Choose Unrestricted Access, Limit Adult Websites, or Allowed Websites Only.
Depending on the access you allow, you might need to add information, like the website that you want to restrict.
Restrict Siri web search
To restrict Siri features:
- Go to Settings and tap Screen Time.
- Tap Content & Privacy Restrictions, then tap Content Restrictions.
- Scroll down to Siri, then choose your settings.
You can restrict these Siri features:
- Web Search Content: Prevent Siri from searching the web when you ask a question
- Explicit Language: Prevent Siri from displaying explicit language
Restrict Game Center
To restrict Game Center features:
- Go to Settings and tap Screen Time.
- Tap Content & Privacy Restrictions, then tap Content Restrictions.
- Scroll down to Game Center, then choose your settings.
You can restrict these Game Center features:
- Multiplayer Games: Prevent the ability to play multiplayer games
- Adding Friends: Prevent the ability to add friends to Game Center
- Screen Recording: Prevent the ability to capture the screen and sound
Allow changes to privacy settings
The privacy settings on your device give you control over which apps have access to information stored on your device or the hardware features. For example, you can allow a social-networking app to request access to use the camera, which allows you to take and upload pictures.
To allow changes to privacy settings:
- Go to Settings and tap Screen Time.
- Tap Content & Privacy Restrictions. If asked, enter your passcode.
- Tap Privacy, then choose the settings you want to restrict.
Here are the things you can restrict:
- Location Services: Lock the settings to allow apps and websites to use location
- Contacts: Prevent apps from accessing your Contacts
- Calendars: Prevent apps from accessing your Calendar
- Reminders: Prevent apps from accessing your Reminders
- Photos: Prevent apps from requesting access to your photos
- Share My Location: Lock the settings for location sharing in Messages and Find My Friends
- Bluetooth sharing: Prevent devices and apps from sharing data through Bluetooth
- Microphone: Prevent apps from requesting access to your microphone
- Speech Recognition: Prevent apps from accessing Speech Recognition or Dictation
- Advertising: Prevent changes to advertising settings
- Media & Apple Music: Prevent apps from accessing your photos, videos, or music library
Allow changes to other settings and features
You can allow changes to other settings and features, the same way you can allow changes to privacy settings.
Iphone Apps On Mac
- Go to Settings and tap Screen Time.
- Tap Content & Privacy Restrictions. If asked, enter your passcode.
- Under Allow Changes, select the features or settings you want to allow changes to and choose Allow or Don't Allow.
Here are some features and settings you can allow changes for:
- Passcode Changes: Prevent changes to your passcode
- Account Changes: Prevent changes to settings for Accounts & Passwords
- Cellular Data Changes: Prevent changes to cellular data settings
- Volume Limit: Prevent changes to volume settings for safe listening
- Do Not Disturb While Driving: Prevent changes to Do Not Disturb While Driving
- TV Provider: Prevent changes to TV provider settings
- Background App Activities: Prevent changes to whether or not apps run in the background
Learn more
- Set up Family Sharing with up to six people to share content, as well as request and make purchases with Ask to Buy.
- You can also use Restrictions on your Mac or PC and Apple TV.
- Learn how to prevent in-app Purchases or change the credit card that you use in the iTunes Store.
- See how to view and limit your child or teen's Apple Cash activity.
Businesses and schools often use profiles, which can turn on Restrictions. To find out if your device has a profile, go to Settings > General > Profiles. Contact your administrator or the person who set up the profile for more information.