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.

ContainerMPEG-4 Part 14
Usual codecAAC (or Apple Lossless)
Extension.m4a
Comes fromiPhone Voice Memos, Apple Music downloads (DRM-free), recorders

How to open M4A files