win32diskimager 1.1
in32DiskImager is an open-source tool to create bootable USBs of operating systems from the Live CDs or an ISO image. Win32DiskImager is licensed under the General Public License (GPL). This means that anyone can download it at no charge, modify it at will and use it on his or her own computer. Win32DiskImager is currently only compatible with Windows, but Mac OS compatibility is in the works. The software itself is designed to be very simple and straightforward to use.
In addition, it has an easy-to-use graphical user interface. To create a bootable device, all you have to do is select the USB drive that you are going to use and then locate the ISO file of the operating system that you are going to install. It also allows you to create USB drives with multi-boot, and it is not limited to ISO files but also allows you to use almost any other alternative format.