Download of McClean 2.1 for Mac was available from the developer's website when we last checked. We cannot confirm if there is a free download of this app available.
According to the results of the Google Safe Browsing check, the developer's site is safe. Despite this, we recommend checking the downloaded files with any free antivirus software. The application belongs to System Tools. This software for Mac OS X is an intellectual property of Dirk Einecke.
From the developer:
McClean is an easy-to-use disk cleaning utility. Delete .DS_Store files, .svn folders, .git files and folders and thumbs.db files in seconds. All deleted files and folders are recorded in the Result log.
Mac OS X automatically creates hidden .DS_Store files in every folder to store custom attributes of a folder such as the position of icons or the choice of a background image.
You may want to check out more Mac applications, such as Dock Changer, PDFGarden or AppMenuBoy, which might be related to McClean.