Clonezilla - Clonezilla is a suite of software that's designed to allow you to back-up and image new hard drives with your data.
DaisyDisk - DaisyDisk is a disk analyzer tool for OS X that visualizes hard disk usage and allows to free up hard disk space.
Macrium Reflect - Macrium Software - the creators of Macrium Reflect backup, imaging and cloning software.
CleanMyMac X - Clean, protect and speed up your Mac
AOMEI Backupper - AOMEI Backupper is a software created to help a person backup, restore, clone, and sync their entire Windows system.
MacFly Pro - Smart assistant for better Mac performance