How to open a .m4a file: without installing anything

How to open a .m4a file

A .m4a is a M4A file: AAC audio in an MP4 container. Apple's default; better than MP3 at the same bitrate. VLC, Apple Music, Windows Media Player, foobar2000, Audacity open it. Or drop it below: it opens and converts in your browser, nothing to install.

Drop files here or click to chooseSeveral files at once are fine.

🔒 Nothing is uploaded. Check the Network tab of your browser: it stays empty.

Three ways to open it

Drop the .m4a file above: it opens and converts right here, nothing to install.
For a desktop app: VLC, Apple Music, Windows Media Player, foobar2000, Audacity.
If it still will not open, convert it to MP4, that is what most people are really after.

Convert a .m4a

M4A → MP4 M4A → WebM M4A → GIF M4A → MP3 M4A → WAV M4A → OGG M4A → Opus M4A → FLAC

Questions

What program opens a .m4a file?

VLC, Apple Music, Windows Media Player, foobar2000, Audacity. Or drop it here, without installing anything.

Why won't my .m4a open?

Either the viewer does not know M4A (aac audio in an mp4 container. apple's default; better than mp3 at the same bitrate.), or the file is damaged or misnamed. Converting to MP4 fixes the first case.

Is it safe to open a .m4a here?

Yes: the file is read in your browser and never leaves your device.