Reducing Animated GIF File Size with ImageMagick

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.

Written by Joel Dare on April 20, 2025.

Want to see my personal updates, tech projects, and business ideas? Join the mailing list.