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.

Balena Etcher - Flash OS images to SD cards & USB drives, safely and easily.

UNetbootin - UNetbootin is a utility for creating live bootable USB drives. The name of the software is short for Universal Netboot Installer, and its most prevalent use has been to create bootable versions of Linux distributions on a USB drive.

Tuxboot - Tuxboot helps you to create a bootable Live USB drive for Clonezilla live, DRBL live, GParted live...

dd - Command-line utility for Unix and Unix-like operating systems to convert and copy a file.

mkusb - (Straight up rufus for Linux users ) The mkusb tool was developed to make it simpler and safer to create boot drives with the method to flash or clone an iso image or a compressed image file. It is using dd under the hood.