FFmpeg

The universal multimedia framework. Convert, process, and stream video and audio.

• Official site: https://ffmpeg.org
• Docs: https://ffmpeg.org/documentation.html

Common Commands

Format Conversion

ffmpeg -i input.mp4 output.webm                    # Convert MP4 to WebM
ffmpeg -i input.mov output.mp4                      # Convert MOV to MP4
ffmpeg -i input.wav output.mp3                      # Convert WAV to MP3
ffmpeg -i input.mp4 -c:v libx264 -crf 23 output.mp4  # Re-encode with H.264