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.

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

YUMI - YUMI (Your USB Multiboot Installer), is a tool that allows you to boot multiple ISO files from one USB drive.

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.

Universal USB Installer - Universal USB Installer aka UUI is a Live Linux Bootable USB Creator that allows you to choose from a selection …

Install Disk Creator - Install Disk Creator simplifies creating a bootable OS X installer.