CleanZilla 4.513.9 for Mac was available to download from the developer's website when we last checked. We cannot confirm if there is a free download of this app available.
Please check the Mac app with an antivirus before launch as it is downloaded from the developer's website, and we cannot ensure that it is safe. The program lies within System Tools, more precisely System Optimization. The actual developer of this free Mac application is Everyday Tools.
From the developer:
Bugs and problems on your MAC don't exist anymore with a new app CleanZilla. Fix your MAC easily and by yourself, using app's high functionality.
You may want to check out more Mac applications, such as Dock Delight, which might be related to CleanZilla.