PhotoBulk
Commercial
PhotoBulk is an easy-to-use batch photo editor. Watermark photos, Optimize and Rename photos at once.
XnConvert
Free
XnConvert is a powerful and free cross-platform batch image processor, allowing you to combine over 80 actions.
ImageMagick
Open Source
ImageMagick is a free and open-source software suite for displaying, converting, and editing raster image and vector image files.
GraphicsMagick
Open Source
GraphicsMagick is a utility of image processing.
Compare FastStone Photo Resizer with alternatives
Compare PhotoBulk and FastStone Photo Resizer and decide which is most suitable for you.
Compare ImageMagick and FastStone Photo Resizer and decide which is most suitable for you.
Compare XnConvert and FastStone Photo Resizer and decide which is most suitable for you.
Compare GraphicsMagick and FastStone Photo Resizer and decide which is most suitable for you.