Fluid - Turn Your Favorite Web Apps into Real Mac Apps.
DVDVideoSoft Image Convert and Resize - Free Image Convert and Resize is a compact yet powerful program for batch mode image processing.
WebCatalog - Run your favorite web apps natively
Ralpha Image Resizer - High-speed image batch conversion tool
Unite for macOS - Turn websites into native apps on your Mac.
Caesium Image Compressor - Compress your pictures up to 90% without visible quality loss.