Navigate to the Library > Caches folderĥ. Select the Library folder when it appearsĤ. Click on your Mac desktop or a Finder windowģ. The idea is to optimize Mac performance, speeding up loading times, but if caches grow too much, they can be counter-productive.ġ. The idea of system caches is simple: macOS apps will store certain temporary information on your Mac, so it doesn’t need to be created again the next time that app runs. On top of that, Macs and macOS apps often come bundled with unnecessary language files, which waste disk space. Over time, your Mac will also fill up with data it doesn’t need, hidden in obscure places on your system drive. That’s fine if you need those files or if they’re easy to find and remove. The more you use your Mac, the more files it accumulates. Why do you need to clean junk files from your Mac? Ways to clear your Mac of junk files include: There are several different types of junk file you can remove and a few different ways to do it. Doing so can free up precious disk space, giving you more room for the files you want and potentially speeding up your Mac in the process. Every now and then, it’s a good idea to clear your Mac of junk files.