MP3 to M4A Converter

Want your MP3 in Apple's format? This free converter turns .mp3 audio into an M4A (AAC) file in seconds — no software or signup. Files up to 30MB are converted directly and nothing is stored after your download.

How to Convert MP3 to M4A

1. Upload your MP3 file

Drag a file onto the box above, or click to browse.

2. Choose a bitrate

M4A is already selected as the output. Pick a bitrate for the AAC audio inside — 320 kbps for best quality.

3. Convert & download

Click Convert & Download. Your .m4a file downloads automatically, ready for the Apple Music app.

A Note on Lossy-to-Lossy

MP3 and M4A (AAC) are both lossy, so converting between them re-encodes already-compressed audio and can add a little loss. It won't improve the MP3 — it just repackages it in Apple's more efficient, native format, handy for iPhone, iPad, Mac, AirPods, and CarPlay. Convert from a high-bitrate MP3 and pick 320 kbps. See MP3 vs M4A. Need the reverse? Use M4A to MP3.

Frequently Asked Questions

How do I convert MP3 to M4A?

Upload your .mp3 file, keep M4A selected and pick a bitrate, then click Convert & Download. The .m4a file is created and downloaded automatically.

Why convert MP3 to M4A?

M4A (AAC) is the native, efficient format across Apple devices — iPhone, iPad, Mac, AirPods, and CarPlay — with full tag and artwork support.

Does converting MP3 to M4A improve quality?

No. Both are lossy, so re-encoding can't add quality the MP3 already lost — it just repackages it. Choose 320kbps to keep it transparent.

Is the MP3 to M4A converter free?

Yes — it's completely free, with no account, no watermarks, and no limit on how many files you convert.