ImBatch - ImBatch is a batch image processor with a nice graphical user interface.
instashare - Share your photos to instagram from your mac
Batch Image Resizer - Resize, crop, shrink, flip, exif-rotate, convert, enhance, process multiple pictures and photos with professional software! 120+ Actions, 30+ Image Formats
Frame.io Watch Folders - Accelerated, secure, & indestructible uploading to Frame.io
DVDVideoSoft Image Convert and Resize - Free Image Convert and Resize is a compact yet powerful program for batch mode image processing.
Pushbullet - Pushbullet - Your devices working better together