Peanut is a tiny JPEG comment editor that is easy to integrate with image viewers that support custom actions, such as Mirage and GQview.
ImageOptim decreases the file size of PNG, JPEG, and GIF images, even those "Saved for Web". It combines OptiPNG, PNGCrush, AdvanceComp, PNGOUT, Jpegoptim + Jpegtran, and Gifsicle for the best possible optimization.
A generic library for real-time communications with asynchronous I/O support.
An image batch converter and resizer with advanced features.