Convert MP3 to WAV

Free online MPEG-1 Audio Layer III (MP3) to WAV converter. No sign-up required.

Drag & Drop MP3 File

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Maximum file size: 50MB

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How to Convert MP3 to WAV

1. Upload MP3 File

Select your MP3 file or drag and drop it into the upload area.

2. Convert to WAV

Click the Convert button and our system will process your file automatically.

3. Download WAV

Once conversion is complete, download your new WAV file instantly.

About MP3 and WAV Formats

What is MP3?

MP3 was developed largely at Germany's Fraunhofer Institute and standardised in 1993. It discards sounds the ear is unlikely to notice, typically at 128-320 kbps, which makes files roughly a tenth the size of CD-quality WAV.

Commonly used for:

  • Music libraries and portable players
  • Podcasts and audiobooks
  • Sharing audio by email or messaging

What is WAV?

WAV was introduced by Microsoft and IBM in 1991 and stores audio as uncompressed PCM samples. CD-quality stereo WAV (16-bit, 44.1 kHz) uses about 10 MB per minute, and every audio editor, DAW and media player can open it.

  • Recording, editing and mixing in any DAW
  • Mastering and archiving at full quality
  • Broadcast, sampling and sound-design work
  • Maximum compatibility with hardware and software

Why convert MP3 to WAV?

Many editors, samplers, CD-burning tools and broadcast systems expect WAV, and editing a WAV avoids re-encoding the MP3 each time you save.

Frequently Asked Questions

No further quality is lost: WAV stores the decoded MP3 audio without compression. Detail that MP3 discarded when it was created cannot be restored, so the WAV will sound the same as the MP3, not better.

MP3 is a lossy compressed format, typically 1-2.5 MB per minute. WAV is uncompressed (about 10 MB per minute at CD quality), so the WAV will usually be 5-10x larger.

Yes, it is completely free and no sign-up or software install is needed.

Files are uploaded over an encrypted HTTPS connection, converted on our servers and deleted automatically, normally within an hour. We never share your files with third parties.

Related Conversions

WAV to MP3 FLAC to WAV AAC to WAV OGG to WAV M4A to WAV AIFF to WAV AIFC to WAV ALAC to WAV All supported conversions