Free, open-source alternatives to CleanMyMac

An all-in-one Mac maintenance app that clears system junk, removes apps with their leftovers, finds large files and scans for malware.

CleanMyMac bundles several maintenance tools into one app. It scans for caches, logs and other system junk, uninstalls apps together with their support files, finds large and duplicate files, and adds malware scanning and performance tools.

The open-source apps below all cover the central task of finding caches and leftovers and letting you review them before anything is removed. Mac Sai, MangoDisk and PureMac follow the all-in-one approach with uninstallers and storage tools, and Peel starts from uninstalling but adds space cleanup and maintenance views, while Purge, MacSift and Dusty focus on cleanup alone and move files to the Trash instead of deleting them outright. Whichever you pick, review each selection before confirming.

CleanMyMac website