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.
ImBatch - ImBatch is a batch image processor with a nice graphical user interface.
PhotoPenguin App - PhotoPenguin is a completely free batch photo editor with support for cropping, resizing, adding watermarks, and converting photos to other formats. It works on the user's device, using the capabilities of modern browsers.
Batch Image Resizer - Resize, crop, shrink, flip, exif-rotate, convert, enhance, process multiple pictures and photos with professional software! 120+ Actions, 30+ Image Formats
DVDVideoSoft Image Convert and Resize - Free Image Convert and Resize is a compact yet powerful program for batch mode image processing.
Phatch - Phatch = Photo & Batch!
Fotosizer - Fotosizer is a freeware batch image resizer tool. It resizes your photos in just 3 easy steps - 1.