CCleaner - CCleaner cleans, speeds up and frees up space on business endpoints.
htop - htop - an interactive process viewer for Unix. This is htop, an interactive process viewer for Unix systems. It is a text-mode application (for console or X terminals) and requires ncurses. Latest release: htop 2.
Glary Utilities - The No. 1 Free, Powerful and All-in-one utility for cleaning your PC
Atop - An advanced interactive monitor for Linux-systems to view the load on system-level and...
BleachBit - When your computer is getting full, BleachBit quickly frees disk space.
Clean Master - Some users swear by it, some call it a glorified snake oil that does more harm than good. That can be said about any snake oil, but what specific brand of snake oil can boast almost a billion downloads around the world?