Avast Cleanup - Next generation tuneup and cleanup for your PC

Glary Utilities - The No. 1 Free, Powerful and All-in-one utility for cleaning your PC

CleanMyMac X - Clean, protect and speed up your Mac

Mem Reduct - Mem Reduct is a small application that allows you to monitor and clean your computers memory.

WinExt Free - Powerful Win utilities: fix registry issues, clean system junk, protect privacy, optimize system, find duplicates, show larger resources, see more info of recently accessed resources, monitor activity, make batch operations, synchronize resources.

CleanMem - CleanMem keeps memory use in check on the system without the memory being pushed to the page file.