To simplify your selection, we have here shortlisted the top 16 best free Mac cleaner software that you could try in 2021 to clean and optimize your Mac. Mac cleaning applications come in a variety of flavors, each with its own unique set of features. Mac cleaner is a dedicated application designed specifically to help you boost Mac performance and free up valuable disk space by deleting all kinds of unwanted junk files, broken downloads, cached data, duplicate files, obsolete apps, browser cookies, and much more. Many people have the question, ‘How to clean my Mac?’, and the plain answer to it is not cleaning it manually but installing the best free Mac cleaning software. Therefore, one needs to clean their system and get rid of these pests. There might be a lot of unwanted and duplicate files in your Mac system, which might be the reason for your Mac running slow. Your Mac can be storing up to 62 GB in the junk.

Hence, it’s essential to delete them with the best Mac cleaner apps to clean up your Mac & improve its performance. Why do you need a Mac cleaner app? System junk files, cached data, partial downloads, and useless items like old backups, duplicate photos can eat up a lot of hard drive space on your Mac.