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Convert M4A to MP3

Turn iPhone voice memos and other M4A files into MP3s that play anywhere.

Used by 500K+ people since 20215M+ minutes processed

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Free for the first hour, 10 times a day. No sign-up.

From M4A to MP3

Play M4A, then MP3.

M4A · 55 KBbecomesMP3 · 53 KB

Voice memo: ashavers on Freesound, CC BY 4.0

Works in any language

  • Hello
  • こんにちは
  • Hola
  • 안녕하세요
  • Bonjour
  • नमस्ते
  • Hallo
  • 你好
  • Ciao
  • مرحبا
  • Olá
  • Привет
  • Hoi
  • สวัสดี
  • Merhaba
  • Γεια σας
  • Xin chào
  • שלום
  • வணக்கம்
  • Kia ora

How to convert M4A to MP3

  1. 1

    Add an M4A file, such as an iPhone voice memo.

  2. 2

    Keep MP3, or choose WAV or another format.

  3. 3

    Download your MP3.

About M4A files

M4A is audio in Apple's MP4 file format. The sound inside is usually AAC, and sometimes Apple Lossless. iPhone voice memos are M4A, and so are songs bought on the iTunes Store and the audio-only file Zoom saves next to its video recordings.

Some players, car stereos, websites, and upload forms take only MP3. Going from AAC to MP3 is one lossy format to another, so a little detail is lost, but the MP3 keeps about the same bitrate as your M4A. It comes out about the same size, and most people hear no difference.

Questions

Can I convert iPhone voice memos?

Yes. In Voice Memos, save the memo to Files, then choose it here. With Audio Quality set to Lossless in Settings, a memo is Apple Lossless but still ends in .m4a; its MP3 is made at 192 kbps.

Can I convert songs from Apple Music?

Not songs from an Apple Music subscription: they're protected, so they only play in Apple's apps. Songs bought on the iTunes Store aren't protected, and convert like any other M4A.

How big will the MP3 be?

About as big as the M4A. A song bought on iTunes at 256 kbps becomes a 256 kbps MP3. For a smaller file, pick a lower bitrate under More options.

Can I get a WAV instead?

Yes. Pick WAV under Convert to. It keeps everything in the M4A and opens in almost any editor, but it's much bigger: about 10 MB a minute at CD quality.

Is it free?

Yes, for the first hour of each file, 10 times a day, with no sign-up. For longer files, see pricing.

What happens to my files?

They stay private. Files are deleted after 24 hours, and free results after 1 hour.

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curl -F file=@voice-memo.m4a -F format=mp3 https://audo.ai/api/try/convert -D response.headers -o response.body