Extract audio from video — MP4 to MP3

Use this when you want to listen to or edit just the audio from a lecture, meeting, or performance you recorded yourself. For copyrighted video, keep audio extraction within personal use.

The file is never sent to a server — processed entirely in this browser

How to use MP4 → MP3

1Select a video file.
2Choose a save format (MP3, M4A, WAV) and audio quality.
3Click [Extract audio] to save the audio file.

Frequently asked questions

What's the advantage of extracting as M4A?

Most MP4 files already have AAC audio, so choosing M4A skips re-encoding — it's fast and lossless.