Apps similar to Resiza include ImageMagick, which is free and open source. Other options are XnConvert, Light Image Resizer and GraphicsMagick. In total there are four Image Optimizers like Resiza for Windows, Linux, Mac, iPhone and iPad.
ImageMagick is a software suite to create, edit, and compose bitmap images. It can read, convert and write images in a variety of formats (about 100) including GIF, JPEG, JPEG-2000, PNG, PDF, PhotoCD, TIFF, and DPX.
United States
XnConvert is an easy image converter for graphic files, photos and images available on Windows, MacOSX and Linux.
France
EU
Create email-friendly images, resize in batches, convert formats, and compress using high-quality filters. Integrated in Windows Explorer, it offers high-res settings, watermarking, a profiles library, PDF creation, and supports devices like iPad and iPhone.
FranceEU
GraphicsMagick is the swiss army knife of image processing. Comprised of 282K physical lines (according to David A. Wheelers SLOCCount) of source code in the base package (or 952K including 3rd party libraries) it provides a robust and efficient collection of tools and libraries...
