ImageMagick
Open Source
ImageMagick is a free and open-source software suite for displaying, converting, and editing raster image and vector image files.
Phatch
Open Source
Phatch (PHoto & bATCH) is a raster graphics editor used to batch process digital graphics and photographs. Phatch can be used on the desktop as a GUI program …
XnConvert
Free
XnConvert is a powerful and free cross-platform batch image processor, allowing you to combine over 80 actions.
GraphicsMagick
Open Source
GraphicsMagick is a utility of image processing.
Compare Image Tuner with alternatives
Compare ImageMagick and Image Tuner and decide which is most suitable for you.
Compare XnConvert and Image Tuner and decide which is most suitable for you.
Compare GraphicsMagick and Image Tuner and decide which is most suitable for you.