Answer by kenorb for How do I convert a video to GIF using ffmpeg, with reasonable quality?

Linux/Unix/macOS

Following @LordNeckbeard approach with ffmpeg command, please find the following useful Bash function which can be added into your ~/.bash_profile file:

# Convert video to gif file.# Usage: video2gif video_file (scale) (fps)video2gif() {  ffmpeg -y -i "${1}" -vf fps=${3:-10},scale=${2:-320}:-1:flags=lanczos,palettegen "${1}.png"  ffmpeg -i "${1}" -i "${1}.png" -filter_complex "fps=${3:-10},scale=${2:-320}:-1:flags=lanczos[x];[x][1:v]paletteuse" "${1}".gif  rm "${1}.png"}

Once the function is loaded (manually or from . ~/.bash_profile), you should have new video2gif command.

Example usage:

video2gif input.flv

or:

video2gif input.flv 320 10

^{Scale to 320 width with 10 frames per second.}

You can also specify a different video format (such as mp4).

macOS

You can try GIF Brewery app which can create GIFs from video files.

Alternatively there are several websites which are doing conversion online free of charge.