gifsicle

GIF manipulator. More information: https://www.lcdf.org/gifsicle.

• Optimize a GIF as a new file:
  gifsicle {{path/to/input.gif}} --optimize=3 -o {{path/to/output.gif}}
• Unoptimize a GIF in place:
  gifsicle -b {{path/to/input.gif}} --unoptimize
• Extract a frame from a GIF:
  gifsicle {{path/to/input.gif}} '#{{0}}' > {{path/to/firstframe.gif}}
• Make a GIF animation from selected GIFs:
  gifsicle {{*.gif}} --delay={{10}} --loop > {{path/to/output.gif}}
• Reduce file size using lossy compression:
  gifsicle -b {{path/to/input.gif}} --optimize=3 --lossy={{100}} --colors={{16}} --dither
• Delete the first 10 frames and all frames after frame 20 from a GIF:
  gifsicle -b {{path/to/input.gif}} --delete '#{{0-9}}' '#{{20-}}'
• Modify all frames of a GIF using specific transformation options:
  gifsicle -b --crop {{50}},{{50}}+{{-50}}x{{-50}} --scale {{0.25}} --flip-horizontal --rotate-90 {{path/to/input.gif}}