This is an encoder (based on gifsicle) which implements lossy LZW compression. It can reduce animgif file sizes by 30%—50% at a cost of some dithering/noise. Downloads and source code on GitHub Usage ./gifsicle -O3 --lossy=80 -o lossy-compressed.gif input.gifAdjust --lossy argument to quality you want (30 is very light compression, 200 is heavy). It works best when only little loss is introduced,