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MP3 to WAV Converter

Convert your MP3 files to WAV format. Private — converted on your device.

Processed on your device — files never leave your machine

Drop your MP3 file here or click to browse

Converted on your device — files never uploaded

How to Convert MP3 to WAV

  1. 1 Upload your MP3 file
  2. 2 Converted on your device — files never uploaded
  3. 3 Download your WAV file

MP3 to WAV: for tools that require PCM

Converting MP3 to WAV does not improve the sound. It is done because a tool asks for WAV: a hardware sampler or drum machine, CD-burning software, a radio or podcast upload system, or an audio editor that works on uncompressed files.

The MP3 is decoded on your device and written as 16-bit PCM WAV at the MP3's own sample rate, so a 44.1 kHz MP3 gives a 44.1 kHz WAV and a 48 kHz MP3 a 48 kHz WAV. Mono stays mono. A loud MP3 can decode to peaks above full scale; a 16-bit WAV has no room above 0 dBFS and clips them, while the 32-bit float option keeps them intact.

Expect the file to grow: at 44.1 kHz stereo, a 320 kbps MP3 becomes a WAV about 4.4 times its size, and a 128 kbps MP3 about 11 times. Every artifact of the MP3 encoding stays in the WAV, so if you still have the original WAV, FLAC or CD, convert from that. Tags are not copied. The converter takes MP3s up to 30 minutes long, provided the decoded audio fits your device's memory.

Frequently Asked Questions

Is MP3 or WAV better quality?
WAV is a lossless format while MP3 is lossy. Converting to WAV adds no further compression loss, but cannot recover quality lost during the original MP3 compression.
Will I lose quality converting MP3 to WAV?
No further compression loss — the WAV file holds the decoded audio of your MP3 as PCM: 16-bit for a lossy or 16-bit source and 24-bit for a deeper one, with a low-level dither.
How long does conversion take?
Seconds for most files. Conversion runs entirely on your device — no upload wait, no server queue. Files up to 30 minutes long are supported.
Does converting MP3 to WAV improve quality?
No. The WAV stores what the MP3 decodes to, uncompressed. Detail the MP3 encoder removed stays removed; what you gain is compatibility, and a file you can edit and export without another lossy encode.
Will the WAV have the same sample rate as the MP3?
Yes. Nothing is resampled on the way to WAV: the file is decoded at the rate its MP3 frames declare, and the WAV header records that rate.
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