GIF Resizer - Create animated GIFs and resize GIFs too big to tweet!
ImBatch - ImBatch is a batch image processor with a nice graphical user interface.
SVGConverter - Free Online SVG converter software that converts your PNG, JPG/JPEG, BMP, TIFF, WEBP, PDF to SVG, AI, EPS, PDF.
Batch Image Resizer - Resize, crop, shrink, flip, exif-rotate, convert, enhance, process multiple pictures and photos with professional software! 120+ Actions, 30+ Image Formats
ResizePixel - Free image editor to crop, resize, flip, rotate and convert images online
DVDVideoSoft Image Convert and Resize - Free Image Convert and Resize is a compact yet powerful program for batch mode image processing.