Lemkesoft GraphicConverter
The GraphicConverter software by Lemkesoft is a raster image viewer and organizer with editing capabilities for macOS. Furthermore, as the name implies, it is primarily used for converting images from one format to another.
Additionally, it offers a respectable array of tools for picture manipulation. You can use features like stamping, brightness/contrast, sharpening, rotation, and distortion, as well as express photo enhancement. You can apply a wide range of filters to your images as well.
