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 by 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.