MacClean 3 comes to keep your Mac clean, fast, and secure with cutting-edge technologies and services. In addition to your familiar Mac cleaning and OS system maintaining features, it now arms with privacy and security protections to give you a state-of-the-art Mac experience.

MacBooster is a tool designed to optimize Mac systems. It can clean up 20 types of junk files and detect and remove Mac-specific malware and viruses, protecting your Mac from threats like viruses, spyware, malware, and adware.

General purpose system modify/repair utility

Cocktail is an award winning general purpose utility for Mac OS X. It is a smooth and powerful digital toolset with a variety of practical features that simplifies the use of advanced UNIX functions and helps hundreds of thousands of.

BlueHarvest automatically removes DS_Store files, ._ AppleDouble files and hidden folders such as .Trashes from your USB keys, SD cards, file servers.

Eject for Windows is a small application for Mac OS X that removes hidden files (like DS_Store, ._ AppleDouble, .Spotlight-V100 .Trashes etc.) in a USB flash drive mounted on your Desktop and eject it.

Hidden Cleaner is a simple drag and drop utility that cleans and ejects USB devices like MP3 players, USB sticks... It deletes the hidden files OS X creates like .DS_Store, etc. Still in beta Version. So be carefull to backup your datas before a use.