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. Its interface is as simple as it 
gets, totally bloat-free--a better application than Etcher. USBImager 
synchronized writes, that is, all data is on disk when the progress bar 
reaches 100%. The source code is available at  https://gitlab.com/bztsrc/usbimager .

