M4A audio files are widely supported, but sometimes you simply need an MP3.

Perhaps you’re uploading audio to an older piece of software.

Maybe you’re sending a file to somebody whose device doesn’t recognise M4A.

Or perhaps you simply want your entire music library using one familiar format.

Fortunately, converting M4A to MP3 is straightforward.

What is an M4A file?

M4A is an MPEG-4 audio file format.

Microsoft notes that M4A files commonly contain AAC-compressed audio, although they can also contain Apple Lossless audio.

You’ll often encounter M4A files in music libraries, recordings and audio created using Apple devices or software.

What is an MP3 file?

MP3 is one of the most widely recognised compressed audio formats.

Its biggest advantage is compatibility.

MP3 files work with an enormous range of:

phones

computers

cars

media players

DJ software

editing tools

websites

and older devices.

That makes MP3 useful when compatibility matters more than keeping the original file format.

How to convert M4A to MP3 on Mac using Apple Music

Apple now provides an official method for converting M4A files to MP3 using the Music app on Mac.

  1. Open the Music app.
  2. Select Music from the menu bar.
  3. Open Settings.
  4. Select Files.
  5. Open Import Settings.
  6. Choose MP3 Encoder.
  7. Select OK.
  8. Add your M4A file to your Music library if it isn’t there already.
  9. Select the M4A file.
  10. Choose File → Convert → Create MP3 Version.

The new MP3 should appear alongside the original file.

This is probably the easiest option for many Mac users because you don’t need to install a third-party converter.

Convert M4A to MP3 using GarageBand

Apple also supports converting an M4A file through GarageBand.

The basic process is:

  1. Open GarageBand.
  2. Create an empty project.
  3. Drag the M4A file into your project.
  4. Open the Share menu.
  5. Choose Export Song to Disk.
  6. Select MP3.
  7. Choose your quality setting.
  8. Export the file.

Apple documents GarageBand as another supported route for converting M4A audio to MP3.

This option can be useful if you’re already working with the audio inside GarageBand.

How to convert M4A to MP3 on Windows using VLC

Windows users can use VLC Media Player.

VLC is a free, open-source media player that also supports converting media between formats.

After installing VLC:

  1. Open VLC.
  2. Select Media.
  3. Choose Convert/Save.
  4. Add your M4A file.
  5. Select Convert/Save.
  6. Choose an MP3 audio conversion profile.
  7. Select where you want to save the new file.
  8. Give the output file an .mp3 extension.
  9. Start the conversion.

VLC’s documentation confirms that the application can convert media files by selecting a source, destination and conversion profile.

Is VLC free?

Yes.

VideoLAN describes VLC as free and open-source software available across Windows, macOS, Linux and other platforms.

If you regularly deal with unusual media formats, it can be a handy piece of software to keep installed.

Can Windows play M4A files without converting them?

Often, yes.

Windows Media Player supports M4A audio files, according to Microsoft’s current file-format documentation.

So if your only goal is listening to the file, conversion may not actually be necessary.

Convert it if another application specifically requires MP3 or if you want wider compatibility.

Can you convert M4A to MP3 online?

There are many browser-based audio converters.

These can be convenient because you don’t need to install anything.

However, be careful what you upload.

Avoid uploading:

unreleased music

confidential recordings

private conversations

commercially sensitive audio

copyrighted masters you aren’t comfortable sending to a third party.

For ordinary non-sensitive audio, online conversion tools can be convenient.

For important music files, local tools such as Apple Music or VLC give you more control over the file.

Does converting M4A to MP3 reduce audio quality?

Potentially.

If your M4A file already uses lossy AAC compression and you convert it into a lossy MP3, you’re encoding already-compressed audio again.

That can introduce a small additional loss in quality.

The difference may be difficult to notice at a good bitrate, but technically you aren’t improving the original audio.

For professional music production, always keep your original high-quality source file.

What MP3 quality should I choose?

For ordinary listening, high-bitrate MP3 is usually a sensible option.

Common MP3 bitrates include:

128 kbps

192 kbps

256 kbps

320 kbps.

Higher bitrates generally use more storage but retain more audio information.

If the file is music and storage isn’t a major concern, 256 kbps or 320 kbps is a reasonable choice.

M4A vs MP3: which is better?

Neither format is automatically better for every purpose.

M4A/AAC can provide very good quality at relatively efficient file sizes.

MP3’s major strength is universal compatibility.

Choose M4A when you’re happy with your existing device and software ecosystem.

Choose MP3 when you want the file to work almost everywhere.

Should musicians upload MP3 files to distributors?

If you’re preparing a track for professional digital distribution, don’t create an MP3 purely because it is convenient.

Music distributors normally prefer high-quality lossless audio files such as WAV.

MP3 is excellent for listening, sharing and compatibility.

It usually isn’t the ideal master file for delivering a finished commercial release.

Keep your original WAV or other lossless master wherever possible.

M4A to MP3 FAQs

Can I convert M4A to MP3 for free?

Yes. Mac users can use Apple Music or GarageBand, while VLC provides a free conversion option across multiple desktop platforms.

Can Apple Music convert M4A to MP3?

Yes. Apple provides an MP3 Encoder option through the Music app’s Import Settings.

Can VLC convert M4A to MP3?

VLC supports media transcoding and provides audio conversion profiles.

Can Windows play M4A?

Yes. Microsoft’s current Windows Media Player documentation includes M4A among supported audio formats.

Is MP3 better than M4A?

MP3 generally offers broader compatibility. M4A/AAC can provide excellent quality and efficient file sizes.

Will converting M4A to MP3 improve sound quality?

No. Conversion cannot restore information that isn’t already in the original file. Re-encoding compressed audio may slightly reduce quality.