Utilities

Etcher – free and open source, cross platform and simple software for safe image writing to SD cards and USB drives

KDE Connect – software for connecting and syncing a computer with the KDE (and others) graphics environment and an Android smartphone

K4DirStat – free and open source, a small utility that visually displays the disk space used for Linux

Filelight – free and open source, multi-platform utility for viewing information about disk usage with a graphical interface from KDE

DVDStyler – free and open source, cross-platform software for creating and burning dvd video discs

Mechvibes – lets you play mechanical keyboard sounds as you type on your keyboard

Obfuscate is a free and open source, simple program for editing/hiding confidential information on any image

What IP – free and open source network information tool