2019 Guide – How to Fix RAM Full on Mac

While using Mac, it is very frustrating to see the message, "Your System has Run Out of Application Memory". The main symptom of RAM full is a very slowly operating Mac, app freeze or even the internet running slow.

This specifically means that there is not enough RAM memory available for the CPU to make quick access. So, when the system is short of RAM memory, the most primary thing you should do is to free up more RAM for your Mac. The issue is easy to manage! Here are some basic tips that can help.

ram full

What May Cause RAM Full?

There may be several different reasons behind the slow performance of your Mac. There are a lot of apps and processes that are known for taking up space of your RAM module. They can be login items, startup items, apps running at the background even the web browser's extensions.

So, here are the probable reasons for RAM full on your Mac:

  • Browsers and Extensions

As mentioned earlier, browsers can also consume huge RAM usage especially if there are lots of tabs open at the same time. The same is also applicable for browser extensions. They will take much of your RAM and cause the device to run slower.

  • Background Apps

If numerous apps running at the background of your Mac, they will consume a large portion of the RAM memory. Now, if the application continues to run and getting updated all the time in order to sync data, it will cause heavy memory usage.

  • Apps that Startup Automatically after Login

There are several applications by default gets launched automatically on your Mac. These apps largely slow down the Mac performance and they are known for eating RAM memory. Even if you have removed these apps from the system, there could be a few broken items that can still affect the overall performance to a great extent.

By now, we may have a clear understanding that why your Mac will pop up the message that the RAM ran out. Next, we will specify the solutions to fix the said issue. Let's go!

Way 1: Using A Professional RAM Manager to Fix the RAM Full Issue

Before we trying some complex ways for it, I want to recommend the easiest way for you. A professional program named Umate Mac Cleaner developed by iMyFone can fix the said issue well. It can free up the RAM excellently so that to boost the Mac performance greatly. Here's what the program is capable of:

  • Monitor the RAM statistics in real-time.
  • You will get the list of all the processes which consume over 50MB memory. Then you know which processes should be managed.
  • The program support to manage a single app or all of them in bulk.
  • It filters the processes which required for the running of your Mac, then you will not have the risk to cause system down.
  • The operation is also pretty simple, all can be done with a single click.

Here are the detailed steps for clearing the RAM usage with the program.

Step 1: Download and install Umate Mac Cleaner on your Mac and run it to proceed.

Mac version

Step 2: Then, click on the "Speed Up Your Mac" option from the program interface. After that, click "Start Now".

speed up your mac

Step 3: Lastly, you will see the RAM related tab on the program interface. You need to click on "Free Up" button to get more RAM.

free up RAM

If you keep using this app, then you will be spared from facing Full RAM issue while using the same Mac device.

Way 2: How to Fix the Issue of Full RAM Manually

The Full RAM issue can also be fixed manually without the help of any specific program. But unlike using a professional program, this will not be easy and you need to use multiple procedures in order to get out of this situation.

For the reasons mentioned at the beginning, here are some manual solutions to the full RAM problem.

2.1 Restart Your Mac

Restarting your computer is the simplest way to free up RAM. It is also the first choice for many Mac users. It will solve your problem most of the time.

When your Mac restarts it will empty the RAM and any disk cash, so when it starts up again you should find that things run smoother. However, restarting your Mac may not be convenient. Perhaps your system has hung and you are afraid of losing unsaved information, perhaps and the idea of reopening umpteen apps doesn’t appeal, or maybe you are in the middle of something that you don’t want to interrupt (even if that is the process that is stealing all the RAM).

2.2 Clean Your Cluttered Desktop

A cluttered desktop is also the main reason to eat a large amount of your RAM. The reason is that the operating system considers each and every of that file as a separate program and allocates some amount of RAM to it. So, if you want to fix the full RAM issue on your Mac, you should try to clean your desktop to see the magical effects.

clean cluttered desktop

2.3 Close or Merge Finder Windows

Here is a Finder related tip for you. As each Finder window can have an impact on RAM usage, either close Finder windows that you aren’t using, or merge all the Finder windows together. The operation is easy: Click on Window > Merge All Windows in the Finder.

2.4 Close Unwanted Apps Running in the Background

If there are many apps run in the background of your Mac, they will damage the performance of the device.

In this situation, you need to manually choose every application and close them. After doing this, the issue of full RAM will be improved and you can get more free space for your Mac's running.

heavy memory usage

2.5 Remove Some Extensions on Browsers Or Not Open Many Tabs At the Same Time

There may be many extensions on the browser you are using. So, check them and remove them one after another.

If there are too many tabs opened in the browser at the same time, then just close the ones that are not in use for the moment. Doing this will help you significantly fix the high RAM memory consumption issue.

2.6 Disable Apps that Launches Automatically After Login (Login Items)

To manage the startups or login items on your Mac in a manually way can be relatively complex. In some situations, even you disabled the login items, they may have some agents and daemons left on your Mac, which can make some applications crashing. But don't worry, here listed the detailed steps for you:

Steps to Manage the Login Items :

Step 1: Go to the "System Preferences" and click on "Users & Group".

Step 2: After that, click on your Name or Nickname.

Step 3: Then, click on the tab called "Login Items".

Step 4: Lastly, choose the startup apps that you need to disable and click on "-".

login items on mac

Steps to Manage Agents and Daemons:

Step 1: Navigate to the "System Folder", then go to "Library" and click on "Startup Items".

Step 2: Then, eliminate the startup programs that you want to remove.

Step 3: After that, go to the "Library" and "LaunchingDaemons".

Step 4: Lastly, Delete the files that are unwanted during the startup.

Step 5: Again, go to the "Library" and click on "LaunchingAgents".

Step 6: Again, delete the files that are unwanted during login.

launch daemons

2.7 Update Your macOS

Indeed, the RAM full issue may caused by your outdated macOS. From this aspect, you can check to see if you are running the most up to date version of the OS, and updating it if necessary.

Lastly, just restart the Mac to check if the high memory usage issue be fixed.

Here is the comparison of the 2 methods for you to choose the best one quickly.

iMyFone Umate Mac Cleaner Manual Methods
Easy of Use Pretty easy to use with the intuitive interface. Get everything done with a single click. Every items should be managed one by one, and step by step.
Risk for File Corruption No Yes
Risk for System Down No Yes
Effectiveness Disable the items without leftover within few seconds. The manual way may left some items not be disabled and the process is time-wasting.


So, if you are getting the RAM full message from your Mac and not providing its optimal performance, then you need to free up RAM memory immediately. Use any of the ways discussed in the article but it will be convenient for you to use the professional program iMyFone Umate Mac Cleaner. It is a comprehensive Mac manager for your daily life.

Mac version

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