Compressify - Compress video files by 20-60%
ImBatch - ImBatch is a batch image processor with a nice graphical user interface.
Pushbullet - Pushbullet - Your devices working better together
DVDVideoSoft Image Convert and Resize - Free Image Convert and Resize is a compact yet powerful program for batch mode image processing.
The Unarchiver - Get the top application for archives on Mac. It's a RAR extractor, it allows you to unzip files, and works with dozens of other formats.
Ralpha Image Resizer - High-speed image batch conversion tool