M4A converter
Convert M4A audio, including iPhone voice memos, to MP3 for free. The conversion runs in your browser and needs no sign-up.
Convert M4A files
What is a M4A file?
M4A is audio in the MPEG-4 container, usually encoded with AAC and sometimes with Apple Lossless. iPhone Voice Memos and many Apple apps save M4A files. It sounds better than MP3 at the same file size, but some devices and apps accept only MP3.
| Container | MPEG-4 Part 14 |
|---|---|
| Usual codec | AAC (or Apple Lossless) |
| Extension | .m4a |
| Comes from | iPhone Voice Memos, Apple Music downloads (DRM-free), recorders |
How to open M4A files
- Apple devices, Windows 10+: Plays in Music, QuickTime and Windows Media Player.
- Older players, some cars: Often play MP3 only. Convert to MP3.