MP4 vs MP3 vs best quality: choosing a download format

Overview

Best quality merges the highest available video and audio streams. Use it when you need a master file for editing.

MP4 is a reliable default for playback and sharing. MP3 is ideal when you only need audio — podcasts, music, or voice tracks from social clips.

720p and smallest file are helpful on slow connections or when storage matters. You can change the format before previewing; additional options may appear after metadata resolve.