ImageOptim - Faster web pages and apps.
jStrip - jStrip is a free tool to reduce the file size of JPEG images without sacrificing image quality.
TinyPNG - Make your website faster and save bandwidth. TinyPNG optimizes your PNG images by 50-80% while preserving full transparency!
ImageAlpha - ImageAlpha is a GUI for pngnq and pngquant.
Oxipng - Oxipng is a multithreaded lossless PNG compression optimizer. It can be used via a command-line interface or as a library in other Rust programs.
AdvanceCOMP - Play MAME on your TV Arcade Monitor or Fixed Frequency Monitor