Convert audio to WAV — free online tool

Convert audio to uncompressed 16-bit PCM WAV for editing or sampling, with sample rate and channel choices, processed in your browser.

Audio

Convert audio to WAV

Choose a file, adjust the edit, preview the result, and export it.

Or drop an MP3, WAV, M4A, AAC, FLAC, OGG, Opus, or WebM audio file anywhere on this page.

Processed audio will appear here.

What to know

WAV in this converter is uncompressed 16-bit PCM, the format audio editors, samplers and many speech-recognition tools expect. Nothing is thrown away at export, so repeated editing does not stack up compression damage the way MP3 or M4A would.

Size follows a fixed formula: sample rate x 2 bytes x channels. Stereo at 44.1 kHz is 176,400 bytes per second, about 10.6 MB per minute, and at 48 kHz it is 192,000 bytes per second, about 11.5 MB per minute. A 3-minute stereo song therefore lands near 31.8 MB.

There is no Audio quality menu because PCM has no bitrate. The only ways to shrink the file are a lower sample rate or Mono, which halves the size: 3 minutes of mono at 44.1 kHz is about 15.9 MB.

Converting an MP3 or M4A to WAV does not bring back detail. The result is a larger container around the same decoded sound, which is useful when software refuses compressed input but pointless for quality.

The classic WAV header stores sizes in 32 bits, so a single file tops out at 4 GB, roughly 6.7 hours of CD-quality stereo; browser memory is likely to be the tighter limit long before that.

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How to use Convert audio to WAV — free online tool
  1. Drop a compressed file such as take3.mp3 or a FLAC master into the box.
  2. Leave Export format on WAV; note that Audio quality is hidden.
  3. Choose 44.1 kHz for music or 48 kHz for video work, and select Mono if the recording has one voice.
  4. Convert, preview, and download take3-wav.wav.

Quick answers

How big is one minute of WAV?

Stereo at 44.1 kHz and 16 bits is about 10.6 MB per minute, and mono is half of that. At 48 kHz stereo it rises to about 11.5 MB.

Does MP3 to WAV restore lost quality?

No. WAV only stores the decoded samples without compression, so detail that MP3 discarded stays gone.

What is the bit depth of the WAV I get?

16-bit signed PCM, the CD-standard depth. There is no 24-bit or 32-bit float option here.

Is there a maximum length for a WAV file?

The format header limits a file to 4 GB, about 6.7 hours of 44.1 kHz stereo, though your browser may run out of memory sooner on very long recordings.