DVDVideoSoft Image Convert and Resize - Free Image Convert and Resize is a compact yet powerful program for batch mode image processing.
Adobe Photoshop - Adobe Photoshop is a webtop application for editing images and photos online.
Ralpha Image Resizer - High-speed image batch conversion tool
Polarr - MacOS, Windows, iOS, Android and online photo editing tools & free photo editors.
ImBatch - ImBatch is a batch image processor with a nice graphical user interface.
SpotiPlus - SpotiPlus is a feature-rich application that lets you create cover arts for Spotify playlists and increase your fan following.