FotoFlexer - FotoFlexer is the most powerful online photo editor in existence.
ImBatch - ImBatch is a batch image processor with a nice graphical user interface.
Photoshop.com - Photoshop.
DVDVideoSoft Image Convert and Resize - Free Image Convert and Resize is a compact yet powerful program for batch mode image processing.
Face Live Camera - Face Live Camera: Photo Filters, Emojis, and Stickers is an amazing photography app developed and published by Lyrebird Studio for Android and iOS devices.
Ralpha Image Resizer - High-speed image batch conversion tool