USBImager is a really really simple GUI application that writes

compressed disk images to USB drives and creates backups.

Available platforms: Windows, MacOSX and Linux. http://gitlab.com/bztsrc/usbimager

Just for Windows

Rufus - Windows only http://github.com/pbatard/rufus

USB Image Tool - Windows only http://www.alexpage.de/tag/usb-image-tool/

WIN32 Disk Imager - Windows only last update 2017-03-08 http://sourceforge.net/projects/win32diskimager/

Don't miss part 2!