ResizePixel is a free online image editor where simplicity is essential feature. It is designed to crop, resize, flip, rotate and convert images to various formats. The service is mobile-friendly, fast and easy to use.
Adobe Photoshop - Adobe Photoshop is a webtop application for editing images and photos online.
DVDVideoSoft Image Convert and Resize - Free Image Convert and Resize is a compact yet powerful program for batch mode image processing.
Pixlr - Pixlr® makes it easy to transform everyday images into stunning works of art.
Ralpha Image Resizer - High-speed image batch conversion tool
BeFunky - BeFunky is an online photo editing and graphic design solution
ImBatch - ImBatch is a batch image processor with a nice graphical user interface.