CSS Peeper - Smart CSS viewer tailored for Designers.
ImBatch - ImBatch is a batch image processor with a nice graphical user interface.
Tailwind CSS - A utility-first CSS framework for rapidly building custom user interfaces.
DVDVideoSoft Image Convert and Resize - Free Image Convert and Resize is a compact yet powerful program for batch mode image processing.
Purgecss - Easily remove unused CSS
Ralpha Image Resizer - High-speed image batch conversion tool