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.
Instagiffer - Create GIFs from anything!
ImBatch - ImBatch is a batch image processor with a nice graphical user interface.
Giffing Tool - Giffing Tool is simply put: The fastest creator of high quality captioned GIFs available.
Batch Image Resizer - Resize, crop, shrink, flip, exif-rotate, convert, enhance, process multiple pictures and photos with professional software! 120+ Actions, 30+ Image Formats
GIPHY Create - Create animated GIFs from videos (by Giphy)
DVDVideoSoft Image Convert and Resize - Free Image Convert and Resize is a compact yet powerful program for batch mode image processing.