DotCleaner 1.4 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. The program lies within System Tools, more precisely System Optimization. This free Mac application was originally produced by Aripra Infotech. We recommend checking the downloaded files with any free antivirus.
From the developer:
DotCleaner is an app that removes .DS_Store files from your Mac. The .DS_Store files store Finder-specific preferences concerning the display of each of your folders. Removing these files is an easy way to reset your display preferences. Also, if you are moving files between your Mac and another operating system, these files can cause unexpected problems and should be removed prior to transfer.
You may want to check out more software for Mac, such as TrashMagic, Lilt or WebGrab-FF2, which might be related to DotCleaner.