MP3 to WAV
Convert MP3 audio to WAV format online for free. Uncompressed quality conversion for editing and mastering.
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About this tool
Convert compressed MP3 audio to uncompressed WAV format. Useful for audio editing and mastering.
File size: WAV output is 8–10x larger than the MP3 source. A 4 MB MP3 typically produces a 35–45 MB WAV.
Quality: MP3-to-WAV does not improve quality: it decompresses what's already there. The WAV is lossless from this point forward but cannot recover data lost during original MP3 encoding.
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How to convert
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1Upload MP3 file.
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2Convert to uncompressed WAV.
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3Download audio.
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FAQ
Will the WAV sound better than the MP3?
No. The WAV preserves exactly what the MP3 contains: it cannot recover audio data removed during MP3 encoding. WAV is uncompressed, not higher quality than the source MP3.
Why is the WAV so much larger?
WAV stores raw, uncompressed audio samples. A 4 MB MP3 at 128kbps becomes roughly 40 MB as WAV. This is normal: the WAV contains the same audio information in uncompressed form.
Which sample rate and bit depth does the output use?
The output preserves the original sample rate (typically 44.1 kHz or 48 kHz) and uses 16-bit PCM, which is CD-quality and accepted by all professional tools.
Why would I need WAV if I already have the MP3?
DAWs and audio editors work best with WAV for non-destructive editing. Some platforms (broadcast, game engines, certain recording equipment) require WAV. Also, editing a WAV doesn't re-compress the audio on each save.
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Common use cases
- check_circle Importing audio into Audacity, Logic Pro, Ableton, or Pro Tools for editing
- check_circle Preparing audio for broadcast platforms that require uncompressed WAV
- check_circle Supplying audio assets to game engines (Unity, Unreal) that prefer WAV
- check_circle Converting music tracks before mastering to avoid re-compression artifacts
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