Utilities

screenkey is a free and open source screencast tool that allows you to display pressed keys on the screen in Linux

Touche is a free and open source utility for easily configuring the touchpad and touch screen in Linux

Solaar is a free and open source manager for many Logitech keyboards, mice and trackballs on Linux

KmCaster is a free and open source program for displaying keystrokes and mouse clicks

GKraken is a free and open source program that allows you to control the cooling of NZXT Kraken X for Linux

Mousai is a free and open source song identification program for Linux

OpenRGB is a free and open source, multiplatform program for controlling RGB lighting of various devices

Piper is a free and open source program with a graphical user interface for configure gaming mice

Disk Usage Analyzer is a free and open source simple program to keep your disk usage and available space

Wike is a free and open source program for searching and reading Wikipedia articles for the GNOME desktop