Alchemy file converter
Alchemy lets you convert and merge images with ease through an intuitive, drag and drop interface. On Mac, it's easily accessed through the Mac menubar.
ImageMagick
ImageMagick is a software suite to create, edit, and compose bitmap images. It can read, convert and write images in a variety ...
BIMP
With BIMP you can apply a set of manipulations to an entire group of images! It provides an easy to use interface and a lot of ...
XnConvert
XnConvert is an easy image converter for graphic files, photos and images available on Windows, MacOSX and Linux. It supports ...
ImBatch
ImBatch is a batch image processor with a nice graphical user interface. It will allow you to edit multiple image files at the ...