ImBatch - ImBatch is a batch image processor with a nice graphical user interface.
PhotoFunia - PhotoFunia is a leading free photo editing site packed with a huge library of picture editor effects & photo filters. Edit pictures with online pic editor.
Batch Image Resizer - Resize, crop, shrink, flip, exif-rotate, convert, enhance, process multiple pictures and photos with professional software! 120+ Actions, 30+ Image Formats
Canva Online Photo Editor - Canva is a robust platform that comes with an online photo editor to edit all your images.
Ralpha Image Resizer - High-speed image batch conversion tool
LoonaPix - LoonaPix.com is a way to make funny photo online.