Siril - Siril is an astronomical image processing tool, able to convert, pre-process images, help aligning...
Krisp - Mute the background noise during your calls
PixInsight - A powerful deep sky stacking application for astrophotography.
Iris - The fastest web framework for Go in (THIS) earth
MyNoise - Custom shaped online noise machines. Many Many generic sounds
Fitswork - Fitswork is a windows image processing program, mainly designed for astronomic purposes.