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Convert M4A to MP3 on your Mac

M4A lands on your Mac straight from your iPhone, Music, or camera. Convert M4A to MP3 on your device, nothing uploaded. The desktop app batches a whole folder at once.

Conversion Successful
100% local. Your file is processed in this tab and never uploaded.

How to Convert M4A to MP3

  1. 1

    Drop your M4A file

    Drag it into the converter above, or click to browse. Nothing is uploaded.

  2. 2

    Adjust settings (optional)

    Trim, fade, or adjust volume from the sliders icon.

  3. 3

    Convert and download

    MP3 is preselected. The file converts in this tab and downloads when done.

Why Convert M4A to MP3?

M4A files from Apple Voice Memos, GarageBand exports, iTunes purchases, and iPhone recordings are not natively playable on many Android devices, MP3 players, car audio systems, and older software.

Converting to MP3 gives universal compatibility across every audio device and application.

M4A
MP3
Compression
Lossy (AAC) or lossless (ALAC)
Compression
Lossy
Container
MP4 audio
Typical bitrate
128-320 kbps
Sample rate
Up to 96 kHz
Sample rate
44.1 kHz / 48 kHz
Metadata
iTunes-style tags
Metadata
ID3 tags
Device support
Apple, modern Android
Device support
Universal
Typical use
iTunes, Voice Memos
Typical use
Music, podcasts

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Frequently Asked Questions

Is M4A better quality than MP3 at the same file size?
Yes. AAC (the codec inside M4A) is more efficient than MP3 at the same bitrate. Converting from M4A to MP3 at equal bitrate results in a slight quality reduction.
Are Apple Lossless (ALAC) M4A files supported?
Yes. ALAC M4A files are fully supported and convert cleanly to MP3 at your chosen bitrate.
Will my iTunes album art and metadata transfer to MP3?
Title, artist, and album tags generally carry over. Album art can be inconsistent between players; re-add it in your music app if it drops.
Why won't my M4A file play on my car stereo?
Many car stereos only support MP3 and WMA. Converting to MP3 gives you the broadest possible hardware compatibility.
Is my file private?
Yes. The conversion runs in your browser tab and nothing is uploaded, so your files never leave your device. The only limit is size: 100 MB for this format. Bigger files route to the desktop app.

Converting your entire Voice Memo library?

TeraConvert Desktop batch-converts M4A files from your iPhone backup or Files app export using FFmpeg with no size limit.

Get TeraConvert for MacThis format runs in the Mac app. One-time Pro purchase, 14-day money-back guarantee.