Audio Shop : Your friendly neighborhood script for mangling images or video using audio editing tools.
Trimage (lossless) image compressor : Trimage is a cross-platform GUI and command-line interface to optimize image files via optipng, pngcrush, advpng and jpegoptim
Ossia : A free, open-source, cross-platform intermedia sequencer for precise and flexible scripting of interactive scenarios.
Control and score any OSC-compli...
Crunch : Crunch is a tool for lossy PNG image file optimization. It combines selective bit depth, color type, and color palette reduction with zopfli DEFLATE c...
RoundPic : Online tool for making anti-aliased rounded corners (very Web 2.0!) for avatars and images