EN

Convert MP4 to M4A

Save the audio of an MP4 video as M4A, usually without re-encoding, so it sounds exactly like the original.

Your files never leave your device. Everything runs in your browser.

How it works

  1. Add your videosDrop the files; the format is already set.
  2. Wait a momentAudio is extracted in seconds.
  3. DownloadDownload one by one or all as a ZIP.

Same sound, smaller file

An MP4 video and an M4A audio file use the same container and usually the same AAC audio codec. That means the sound can simply be copied out of the video into an M4A file: no re-encoding, no quality loss, and it takes about a second even for long videos.

M4A plays on iPhones, Android phones, Windows, Mac and in most music apps, and is much smaller than WAV. If the video uses a different audio codec, it is converted to AAC automatically.

Good uses

Turn recorded lectures into something to listen to while commuting, or keep the soundtrack of your own videos as audio.

About MP4

MP4 videos usually carry AAC audio, which can be saved as M4A without re-encoding.

About M4A

M4A is AAC audio in an MP4 container. It is compact, sounds great and plays on iPhones, Android, Windows and Mac.

Frequently asked questions

Is M4A the same as MP3?

No, but it is just as widely supported and usually sounds better at the same size.

Can I get MP3?

Yes. MP3 is the default format, at 192 kbit/s. MP3 files are made with the open source LAME encoder (lame.sourceforge.io).

Is the quality the same as in the video?

With M4A and AAC audio, yes: the track is copied without re-encoding.

Are my videos uploaded?

No. Everything happens in your browser.

Which video formats work?

MP4, MOV, WebM and MKV.