Audio

The M4A format

AAC audio in an MP4 container: it’s the format of iTunes, iPhone voice memos and many recordings. At the same size it sounds better than an MP3.

Drop your files hereor (M4A and over 40 other formats). You can also paste an image.No upload: everything happens on your device

Fact sheet

M4A

MPEG-4 Audio

Best for: Music on Apple devices, voice recordings, good-quality audio in light files.
Limits: Some old players only accept MP3.
Compression: lossy (AAC)
Typical bitrate: 128-256 kbps
Compatibility: excellent
Extensions: .m4a
MIME type: audio/mp4

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Tools for M4A files

Questions about the M4A format

How do I open a M4A file?

Usually a double click is enough: operating systems and the most common programs recognise it. If the program or website you use won’t accept it, you can convert it here to a more common format, for example MP3.

What extension do M4A files have?

.m4a. The MIME type is audio/mp4.

Does converting a M4A lose quality?

It depends on the target format: to lossless formats (PNG, FLAC, WAV) nothing is lost; to compressed formats (JPG, MP3, MP4) you can choose the quality to balance size and result.