Convert MP3 to WAV
Turn an MP3 into a WAV for editors, samplers, and apps that need one.
10M+ files processed since 2021
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
How to convert MP3 to WAV
- 1
Add an MP3.
- 2
Keep WAV, or pick mono or stereo under More options.
- 3
Download the WAV.
What a WAV gives you
Audo's MP3 to WAV converter works on files up to 10 GB without an account and is free for the first hour of each, 10 times a day, with no sign-up. A 3-minute track is usually done in about 4 seconds.
The WAV plays at the MP3's own level. 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.
For the sound of a video as a WAV, use MP4 to WAV instead. It takes MOV, MKV, WebM, and AVI too.
Questions
How do I convert MP3 to WAV?
Add the MP3 at the top of this page, keep WAV, and download it. That's how to save an MP3 as a WAV, in any browser, with nothing to install.
Is there a free way to convert MP3 to WAV without a limit?
Up to a point: Audo converts the first hour of each MP3 free, 10 times a day, with no sign-up. A song is far shorter than an hour, so it converts whole; longer tracks are $0.01 a minute ($0.60 an hour) with no subscription — see pricing.
Does converting MP3 to WAV improve quality?
No. The WAV sounds exactly like the MP3. It holds everything still in the MP3, uncompressed, but can't bring back the detail the MP3 left out.
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.
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.
More tools
- MP4 to MP3Get the sound from any video.
- File infoLength, format and more.
- Audio enhancerMake any recording sound studio‑quality.
- Remove noiseClears the background, keeps your voice.
- Remove echoMake voices sound close.
- Vocal removerSeparate vocals, music, and stems.
- Stem splitterSplit vocals, drums, and bass.
- Karaoke makerRemove vocals, keep the music.
- Change pitchMove the key up or down.
- Change speedSpeed up or slow down audio.
For AI assistants and developers
Ask ChatGPT, Claude, or a coding agent to do this for you, or call it from your own code. When an agent's free result is cut short, it gives you a link to finish the whole file, no sign-up.
Show the free API call
curl -F file=@song.mp3 -F format=wav https://audo.ai/api/try/convert -D response.headers -o response.body