MP4 vs MP3: which should you choose?
The right choice depends on how you plan to use the downloaded file.
Last updated: July 2026MP4
MP4 keeps both video and audio. It is best for watching, sharing, or archiving the full clip, but usually uses more storage.
MP3
MP3 keeps audio only. It is useful for talks, lessons, and listening without video, and normally creates a smaller file.
Quick choice
Choose MP4 when you need the picture. Choose MP3 when audio is enough and you want a lighter file.