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Free converter

MP4 to M4A

Anyfile converts an MP4 video to an M4A audio (sound only) for free, right in your browser: the file is never uploaded.

Files are converted in your browser and never uploaded. By using Anyfile you agree to the Terms of Use.

What changes from MP4 to M4A

PictureLeft out: only the sound is saved
SoundAAC in an M4A file
File sizeUsually smaller: M4A compresses more tightly than MP4

When to use M4A: Music on Apple devices, iPhone voice memos and ringtone sources.

The two formats

.mp4

MP4 videoMPEG-4 Part 14

The MPEG-4 Part 14 container, based on Apple’s QuickTime file format. It commonly holds H.264 or HEVC video with AAC audio, plus subtitles and chapters.

Sharing and streaming video on phones, social media, websites and TVs.

Opens in every browser and phone, QuickTime, VLC, Windows Media Player

About MP4 files

.m4a

M4A audioMPEG-4 Audio

An MPEG-4 file that holds only audio, usually AAC and sometimes Apple Lossless (ALAC). Apple popularised it for songs bought and ripped in iTunes.

Music on Apple devices, iPhone voice memos and ringtone sources.

Opens in Music, QuickTime, iPhone, Windows Media Player, VLC

About M4A files

Questions

How do I convert MP4 to M4A?

Drop your MP4 file on this page, or choose it. Anyfile converts it on your device in a moment and the M4A downloads straight away. To change it first, open it in the video editor.

Is my MP4 file uploaded anywhere?

No. The file is read and converted by your own browser, and nothing is sent to a server. You can check: open your browser’s developer tools, go to Network, and convert a file. No upload appears.

Will I lose quality?

M4A is a compressed format, and Anyfile saves at high quality, so the difference is very hard to notice.

Can I convert several MP4 files at once?

Yes. Drop them together and you get one ZIP with every M4A inside.