Skip to content
audo

Convert MP3 to WAV

Turn an MP3 into a WAV for editors, samplers, and apps that need one.

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

More options

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

From MP3 to WAV

Play MP3, then WAV.

MP3 · 237 KBbecomesWAV · 1.0 MB

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 MP3 to WAV

  1. 1

    Add an MP3.

  2. 2

    Keep WAV, or pick mono or stereo under More options.

  3. 3

    Download the WAV.

What a WAV can and can't do

MP3 saves space by leaving out detail for good. A WAV made from it holds everything that's still in the MP3, uncompressed, so it sounds the same as the MP3. It can't bring back what was left out.

What you gain is a file every editor, sampler, and phone system opens, and one you can edit and save again without losing more each time, as an MP3 would. It's also much bigger: CD-quality WAV runs at 1,411 kbps, about 4 times a 320 kbps MP3 and 11 times a 128 kbps one.

Questions

Which sample rate do I need?

Leave it, and the WAV keeps the MP3's. Phone systems often ask for 8,000 Hz mono, and speech apps for 16,000 Hz. Set it under More options, anywhere from 8,000 to 48,000 Hz.

Mono or stereo?

Mono mixes the two sides into one, and the WAV comes out half the size. Pick it for voice prompts and speech apps. Keep stereo for music.

Is the WAV 16-bit?

Yes. 16 bits hold everything an MP3 carries, and it's what most apps expect.

Is the WAV louder or quieter?

Neither: it plays at the MP3's level. Peaks that would pass the top are brought just under it, so the WAV doesn't clip.

Is it free?

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

How big will the WAV be?

At CD quality, about 10 MB a minute: an hour comes to roughly 635 MB. Files can run up to 10 hours.

Can I make an MP3 again later?

Yes, but each time a file is turned into an MP3 it loses a little more. Keep the WAV while you edit, and make the MP3 once, at the end.

What happens to my files?

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

More tools

All tools

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
Free API · no key
curl -F file=@song.mp3 -F format=wav https://audo.ai/api/try/convert -D response.headers -o response.body