CConvertora

MP3 to WAV

Convert compressed MP3 audio into uncompressed WAV.

Free

Drag & drop your file here

or

Choose File
MP3 → WAVFREE UNLIMITED · up to 25 MB per file

About mp3 to wav

Turn an MP3 into a standard 16-bit PCM WAV file — the format editors, DAWs and older hardware expect. Your browser decodes the MP3 with its own audio engine and Convertora writes a clean RIFF/WAVE file at the original sample rate, keeping mono or stereo as it was. Be aware of what an MP3 is: the audio was already compressed once, so a WAV cannot restore detail that the MP3 discarded — it simply stops any further loss from happening. WAV is also far bigger, roughly 10 MB per minute of stereo audio, which is why the input is capped at 25 MB. Everything runs inside your browser, so the recording never leaves your device.

How it works

  1. 1Choose one or more MP3 files, up to 25 MB each.
  2. 2Your browser decodes each track locally — nothing is uploaded.
  3. 3Convertora writes a 16-bit PCM WAV at the original sample rate.
  4. 4Download the WAV files, one at a time or all together.

Frequently asked questions

Is my audio uploaded anywhere?
No. The MP3 is decoded and the WAV is written inside your browser, so the audio never leaves your device. There is no upload and no copy on our servers.
Will the WAV sound better than the MP3?
No, and we would rather say so. MP3 compression permanently removes detail, and converting to WAV cannot bring it back. What you get is an uncompressed copy that will not lose anything further when you edit or re-export it.
What format is the WAV exactly?
16-bit PCM in a RIFF/WAVE container, at the MP3's own sample rate, with the same channel layout (mono stays mono, stereo stays stereo). That is the most widely supported WAV there is.
Why is the file so much larger?
WAV stores every sample uncompressed — about 10 MB per minute of CD-quality stereo. A 4 MB MP3 can easily become a 40 MB WAV. That is normal, not a fault.
Why is there a 25 MB limit?
The whole track is decoded in your device's memory, and the WAV is around ten times the size of the MP3. The limit keeps the tool reliable on phones and tablets rather than crashing halfway.
What if the file is damaged or is not really an MP3?
We check the file's own contents, not its name. Something renamed to .mp3, a truncated download or an unsupported codec is refused with a clear message instead of producing a broken WAV.

Related tools

This tool runs entirely in your browser — your file is never uploaded, and the result is discarded when you clear it or close the tab. Read more about privacy and security.