ffmpeg alternatives and similar shards

Based on the "Image processing" category.
Alternatively, view ffmpeg alternatives based on common mentions on social networks and blogs.

• celestine

  8.4 4.2 ffmpeg VS celestine

  An SVG library written in Crystal. Can be used to make cool animations, as well as other kinds of uses.
  

• Pluto

  7.8 7.6 ffmpeg VS Pluto

  A fast and convenient image processing library
  

Do you think we are missing an alternative of ffmpeg or a related project?