Convert MP4 to MP3

Lifts the soundtrack out of a video and leaves the picture behind. The audio inside an MP4 is usually AAC, so this is a re-encode rather than a copy - fine at a reasonable bitrate. Everything happens on your machine, which matters more here than usual: this is the conversion people normally hand a video to a stranger's website for.

Drop MP4 file(s) to start

or click to browse

What is MP4?

The container video actually travels in: what phones record, what messaging apps accept, what every player since the iPod era opens. It usually carries H.264 video and AAC audio. Its one structural quirk matters to converters - the index of every frame lives in a table that has to be exactly right, or nothing plays.

What is MP3?

The format that made digital music portable, and thirty years on it's still the safest bet that a file will simply play - any device, any car, any decade-old bit of hardware. It's lossy, its patents expired in 2017, and no browser has ever been able to write one, which is why encoding it here needs LAME.

Your files never leave your device · no magic required