Fluid - Turn Your Favorite Web Apps into Real Mac Apps.
Ralpha Image Resizer - High-speed image batch conversion tool
WebCatalog - Run your favorite web apps natively
ImBatch - ImBatch is a batch image processor with a nice graphical user interface.
Unite for macOS - Turn websites into native apps on your Mac.
Caesium Image Compressor - Compress your pictures up to 90% without visible quality loss.