Help!

ive been thinking about getting a mac. but theres one problem. i want window washer. or ccleaner. does anyone know what im talking about? well anyway i have those on my pc and i want something similar if i get a mac. i say similar cause i already checked and neither of those work with mac. so im sure there is someone else out there who goes on websites they dont want anyone to know about that can help me out. what is a good internet washer i can get for mac? preferably for free. i know you can clear history but i want something a little more thorough. please help!