How To Free Up RAM on Mac

Posted By Volodymyr Chubei | 15 Apr 2025

MacBook is not only a stylish device, but also a powerful tool for work and entertainment. However, even the most productive machines can encounter the problem of running out of Random Access Memory (RAM). This article will show you how to free up RAM on your MacBook to improve the performance of your device.

What is RAM on Mac and why it is important to optimize it

RAM (Random Access Memory) is temporary data storage used for ongoing tasks and processes. On a Mac, RAM is responsible for smooth application performance, fast data processing, and multitasking. If you don't have enough RAM, your device may start to run slower, freeze, or generate system errors.

Regular RAM optimization is important to keep your Mac operating consistently. Freeing up RAM allows you to:

speed up the launch of applications;
avoid overheating of the device due to excessive CPU utilization;
improve overall system performance.

Signs that your Mac needs to free up RAM

Your MacBook may signal that RAM needs to be freed by the following signs:

slow system performance: applications open slowly, cursor often freezes;
the message "Out of Application Memory" appears frequently;
overheating: the coolers run at high speed even under minimum load;
application freezes and crashes;
difficulties with multitasking: simultaneous launch of several programs causes system slowdown;
tabs in Safari or Chrome take a long time to load or freeze when switching between them;
slow loading of files and processes.

If you notice one or more of these signs, it may be time to clean up your RAM.

10 Ways to free up RAM on MacBook

Below, we'll consider the most effective ways to free up RAM on your MacBook. These methods will help you optimize the performance of your device.

1. Rebooting the device

Simply restarting your Mac resets current processes and clears RAM. This is especially effective if your computer has been running for a long time without shutting down.

Tap the Apple icon in the top left corner of the screen.
Select "Reboot" and confirm the action.

2. Closing unnecessary applications

Many programs continue to run in the background even if they are not actively used. They consume RAM, which can slow down your system.

How to close unnecessary programs:

Open "System Monitoring" using Spotlight (⌘+space and enter a name).
Click the Memory tab to see the list of running applications.
Find the programs that consume the most memory and terminate them by highlighting the application and clicking "End Process".

3. Using the macOS optimization feature

MacOS has built-in tools that help you manage RAM and optimize RAM usage.

What you need to do:

Go to System Preferences.
Select the Storage section.
Click on the "Manage" button and enable the recommended options for memory optimization.

Using the optimization feature on macOS described in the section provides several key benefits:

the system automatically deletes temporary files, old documents, and unnecessary items stored in iCloud but not actively used;
reduce the load on RAM by optimizing the resources used.

Thus, this method helps to maintain system stability, especially when performing resource-consuming tasks.

4. Clearing the system cache

Cache files take up a significant amount of memory, especially if applications are frequently used. Deleting temporary data can free up RAM.

How to clear the cache:

Open Finder.
Press Shift+Command+G to open the Go-to Folder window.
Type the path ~/Library/Caches and press Enter.
Delete the contents of the folders inside, but don't touch the system files unless you have experience and understand what they are responsible for.

Also: How to Clear System Data on MacBook

5. Upgrading macOS to the latest version

Every macOS update includes bug fixes, performance improvements, and system optimizations. This can help free up ram space on Mac by fixing bugs which cause memory leaks and improving resource utilization.

Step-by-step instructions:

Click on the "Apple" icon and click on "System Preferences."
Click the Software Update tab.
Check for updates and, if available, select "Update Now".
Make sure your Mac is plugged into a power source and has enough disk space to download the update.
Wait for the installation to complete and restart automatically.

There are a number of benefits of installing macOS updates:

eliminating obsolete processes that may consume RAM;
optimizing the operation of built-in tools and applications;
increased compatibility with modern software, which reduces memory load.

6. Installing third-party memory management software

There are many applications available on the internet that help you to automatically free RAM and manage its utilization.

7. Disabling visual effects

MacOS animations and effects can consume a significant amount of RAM, especially on older devices. For this reason, it is recommended that you disable anything unnecessary, especially on computers with weaker configurations.

Go to System Preferences.
Select the Universal Access section.
Turn on the "Reduce Transparency" and "Reduce Motion" options.

8. Cleaning the autoloader

Programs that run when you turn on your Mac often stay active in the background and consume memory.

How to disable autoloading:

Go to "System Preferences" and then to "Users and Groups".
Select your profile and open the Login Objects tab.
Remove unnecessary programs from the list by clicking on the minus icon (-).

9. Reset RAM

RAM reset improves RAM performance by eliminating bugs and clearing outdated system data. This helps to restore optimal memory performance and eliminate possible leaks or conflicts, which speeds up and enhances the operation of your device.

Reboot the unit or perform a memory reset (NVRAM/PRAM) as follows:

Turn off the Mac completely.
Press and hold Command+Option+P+R simultaneously.
Turn on your Mac while holding down these keys and wait for the second startup beep (or for the Apple logo to appear twice on the screen).
Release the keys and the system will automatically complete the reset and boot up.

10. RAM Upgrade

The RAM upgrade is the physical addition or replacement of RAM modules on your MacBook to increase its capacity. This is one of the most effective ways to improve performance, especially on older MacBook models.

Upgrade Preparation:

Check compatibility. Find out the maximum supported RAM capacity for your MacBook model. You can use Apple's website or specialized resources such as Crucial.
Select the appropriate module. RAM must match the type and speed supported by the device (e.g. DDR3, DDR4).
Prepare your tools. Most MacBooks will require a set of disassembly tools, including Pentalobe screwdrivers.

Brief Instructions:

Disconnect your MacBook from power and other devices.
Remove the back cover and locate the RAM slots
Remove old modules if necessary and install new ones.
Assemble the device and turn on your MacBook.

Features for different models:

MacBooks before 2012: RAM can be replaced.
MacBooks after 2012: RAM is often soldered onto the board, making it impossible to upgrade.

If an upgrade is not possible due to hardware limitations, it's worth considering using a more optimized SSD to speed up your system.

If you are not sure of your skills or want to avoid the risk of damaging your device, contact a professional service center. Specialists will help you choose compatible modules and perform professional installation with guarantees.

Also: How to Upgrade a MacBook: Instructions for Different Models

At Techtoro.io, you'll find genuine parts for various MacBook models, including adapters, cables, and upgrade components. Only brand-name parts that have been tested for performance are available.

Techtoro.io also offers a wide selection of used MacBooks, where everyone can find a model to suit their needs and budget. If you are not sure that you can repair or replace parts yourself, order the services of experts on the site. Techtoro.io specialists will promptly diagnose and troubleshoot all faults.

FAQ

1. How can I free up my RAM memory?

You can restart your Mac, close unnecessary applications, or use special programs like CleanMyMac.

2. Why is my RAM usage so high on my MacBook?

This may be due to running resource-consuming applications, opening a large number of tabs in a browser, or insufficient RAM.

3. How do you reset the RAM on a Mac?

Reboot the device or reset the memory settings by holding down Command+Option+P+R while turning on the Mac.

ABOUT THE AUTHOR

Volodymyr Chubei
Computer Repair Specialist at TechToro.io

Volodymyr was born in Ukraine and has found his passion for electronics from his childhood. At the age of 13, he was capable of soldering some basic elements of a logic board and today he is one of the co-founders of TechToro.io