Rufus - Rufus is a piece of software that allows you to transform a portable drive, like a flash drive or other USB drives, into a bootable drive that can be used for a variety of purposes. Read more about Rufus.
YUMI - YUMI (Your USB Multiboot Installer), is a tool that allows you to boot multiple ISO files from one USB drive.
USB Image Tool - Overview. USB Image Tool can create images of USB flash drives and MP3 players, that are mounted as USB drives. It allows you switch between images with different music styles on your MP3 Player or to make an exact backup image of your USB Stick.
SUSE Studio ImageWriter - Utility for writing raw disk images & hybrid isos to USB keys.
Balena Etcher - Flash OS images to SD cards & USB drives, safely and easily.
Pardus Image Writer - Pardus Image Writer is a tool to create bootable usb drives.