Reducing Animated GIF File Size with ImageMagick

By Joel Dare - Written April 20, 2025

I often want to optimize an image for use on the web. This is easy to do with ImageMagick.

 magick animated.gif -fuzz 7% -layers optimize optimized.gif

animated.gif The input GIF file.
fuzz 7% Allows a 7% color difference when comparing pixels for optimization. This helps further reduce size by treating near-identical colors as the same.
layers 'optimize' Optimizes the GIF animation by reducing redundant pixels between frames, which can reduce file size.
optimized.gif The output GIF file.