CleanMyMac X - Clean, protect and speed up your Mac
Fossils - Find and clean out all your old unused files
CCleaner - CCleaner cleans, speeds up and frees up space on business endpoints.
DaisyDisk - DaisyDisk is a disk analyzer tool for OS X that visualizes hard disk usage and allows to free up hard disk space.
Outbyte - Outbyte is a cmprehenmsive computer repair tool that is built to address a range of various system issues like clean up your drive, optimize performance and enhance privacy or security.
Memory Clean - Super Powerful Memory Cleaning Utility for Mac