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Convert AAC to MP3

Turn AAC audio into MP3s for players, cars, and apps that need them.

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 AAC to MP3

Play AAC, then MP3.

AAC · 113 KBbecomesMP3 · 110 KB

Works in any language

  • Hello
  • こんにちは
  • Hola
  • 안녕하세요
  • Bonjour
  • नमस्ते
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  • 你好
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  • Γεια σας
  • Xin chào
  • שלום
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  • Kia ora

How to convert AAC to MP3

  1. 1

    Add an AAC file.

  2. 2

    Keep MP3, or pick M4A to keep the sound exactly.

  3. 3

    Download the converted file.

About AAC files

AAC (Advanced Audio Coding) was made as MP3's successor. It's the sound inside most MP4 videos and M4A files, it's what iPhones record video sound in, and Apple's iTunes Store sells songs as 256 kbps AAC.

A file ending in .aac is that sound on its own, with no container around it. Some recorders and apps save these, and so do tools that pull the sound out of an MP4. Some car stereos, older players, and upload forms don't take .aac files, but they take MP3.

Questions

Is AAC better than MP3?

At the same bitrate, AAC usually sounds a little better. MP3 plays on more things, which is why people convert. The MP3 keeps about the same bitrate as your AAC, from 64 to 320 kbps.

How do I keep the sound exactly as it is?

Pick M4A under Convert to. The AAC sound is copied into an .m4a file without being changed, and more apps open an .m4a than a bare .aac.

Why won't it play in my car?

Some car stereos and older players were built for MP3 and can't read a bare .aac file. Converting gets around that.

Do I lose anything?

Very little: both formats leave out detail, so converting drops a bit more. Most listeners can't tell.

Is it free?

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

Can I get WAV instead?

Yes. A WAV made from AAC keeps all of its sound, uncompressed, for editors that don't take AAC. It's much bigger, though.

Can I convert the AAC in a video?

Yes. Add the MP4 or MOV itself, and its AAC sound comes out as an MP3. MP4 to MP3 is the page made for that.

What happens to my files?

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

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For AI assistants and developers

Ask ChatGPT, Claude, or a coding agent to do this for you, or call it from your own code.

Show the free API call
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curl -F file=@recording.aac -F format=mp3 https://audo.ai/api/try/convert -D response.headers -o response.body