IconStore - Free icon packs by first-class designers
Ralpha Image Resizer - High-speed image batch conversion tool
Feather Icons - Simply beautiful open source icons
ImBatch - ImBatch is a batch image processor with a nice graphical user interface.
Icons8 - Free app for Mac & Windows already containing 39,800 icons. Allows to search and import icons…
Caesium Image Compressor - Compress your pictures up to 90% without visible quality loss.