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M4A File Format

M4A is AAC sound in an MPEG-4 container, used by iTunes, Apple Music and voice memos.

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Maximum 1 GB

M4A at a Glance

Type	Audio
Full name	MPEG-4 Audio
File extensions	.m4a
MIME type	`audio/mp4`
Developed by	MPEG / Apple

Convert M4A to Other Formats

Convert Other Formats to M4A

Frequently Asked Questions

What is M4A used for?

M4A (AAC) sounds better than MP3 at the same size and plays on iPhone, Mac and Android.

How do I open M4A files?

M4A files open in Apple Music, VLC, Windows Media Player, foobar2000. If you don't have such a program, convert the file to a format you can open with the converter on this page — free and without registration.

How do I convert M4A files?

Drop the file into the converter at the top of this page, choose the output format and click "Convert". Files are deleted from our server automatically after 48 hours.

Is it free?

Yes, all converters are free, with no registration and no watermark.

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