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How to Use Memory Cleaner for Mac

The Memory Cleaner feature can free up Mac's RAM and manage processes on Mac. RAM stands for random access memory, and usually the more memory available, the faster Mac should run. MacKeeper makes cleaning memory on Mac incredibly easy.

Getting started with Memory Cleaner

  1. Open MacKeeper, and click Memory Cleaner from the left sidebar
  2. Click the blue Open button

You should see your Mac's memory overview. Now, you can instantly clean your memory. Learn more details about the cleanup by checking the Memory Usage or Apps & Processes categories.

How to clean memory on Mac

1. Click the blue Clean Memory button at the bottom of the right panel — this will instantly free up some Mac memory

memory cleaner

2. You'll see the amount of memory cleaned as well as how much memory you've just freed up as and how much is still occupied

available memory in memory cleaner

For more details on this, you can check two Memory Cleaner categories. Let's start with Memory Usage.

How to learn more about Mac memory usage

The Memory Usage category will show you details on how your Mac is using memory at the moment. To open it, select Memory Usage from the left panel.


The right panel shows occupied and available amounts of your Mac's RAM memory.


Occupied memory is the memory that your Mac's apps and processes are using at any given moment to run properly. MacKeeper displays four types of occupied memory.

memory usage tab in memory cleaner
  • Apps Memory shows the amount of memory your applications are using
  • Wired Memory displays the amount of memory required for the proper operation of macOS — it can't be compressed or swapped
  • Compressed memory is not currently in use, but the memory that the computer compresses or swaps to the hard drive for later use
  • Cached Files are the part of Mac memory that is currently in use, though it's available for other applications. For example, if you open Safari, your Mac will save data in cache for faster access. However, when another app needs this memory, Safari's data is automatically cleaned so other apps could use the memory.
  • Available Memory stands for memory that other applications can use

Once you reviewed your memory usage details, you can click the blue Clean Memory button. 

memory usage tab with the clean memory button highlighted

Next, you should see a new Available Memory value and the amount of RAM you've just cleaned.

How to manage apps and processes on Mac

The Apps & Processes category displays the list of active processes your Mac is running at any given moment. To open it, select Apps & Processes from the left panel.

By default, this category shows the most memory-consuming processes at the top of the list.

To change the sort order, click the nine-dot button to the right, select Sort by, and choose the order you'd like. You can sort all detected items by Name and by Memory Usage. You can also select Ascending or Descending order.

sort by categories in memory cleaner

Use this category to kill useless processes and quit apps you don't need to run currently.


Quitting an app with Apps & Processes works just like the default Force Quit option in macOS. Before quitting apps like Pages, Microsoft Word, Photos, or similar, make sure you've saved all changes.


To quit an app or process, follow these steps:


1. Hover the pointer over the app or process you want to quit

2. Click the cross button next to the items you want to quit 

apps processes tab with a cross icon highligted

3. Click Quit in the confirmation window if you really want to quit this item

apps processes tab with quit button highlighted

You've just freed up some memory by quitting this app or process.

Should I quit all unknown apps and processes?

No way. Quitting unknown processes may stop necessary app activity on your Mac and turn it into a beautiful piece of aluminum. Keep in mind two things:

  1. Remember to choose apps and processes to quit wisely
  2. Never stop apps and processes you aren't sure about

Is it safe to quit apps and processes?

In most cases, yes. MacKeeper's Memory Cleaner does the same as Mac's built-in Activity Monitor utility. However, MacKeeper is a safe memory cleaner app as it doesn't quit system processes or those important for your Mac's normal behavior.

If you take a closer look at all processes, you may notice a lock icon instead of the cross sign next to some items. The lock icon means that this process is vital for your macOS performance, so quitting it may lead to operational issues.

MacKeeper protects your Mac's security and displays a warning message for important processes. This makes managing apps with MacKeeper totally safe.


MacKeeper's Memory Cleaner is designed to effortlessly manage your Mac's memory. Free up memory regularly to help your Mac run smoother and handle even the most resource-intensive tasks.

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1. Open

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first install step

2. Install

Select Continue to begin the installation

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3. Complete

Hit Install to complete the installation

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4. Enjoy!

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