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MP3 to WAV - Online Audio Converter
Convert MP3 to WAV online. Private, client-side - no uploadrequired. Batch conversion, quality presets, codec control.
Convert MP3 to WAV
Drop MP3 audio here or click to select
MP3
WAV (PCM 16-bit)
About MP3 to WAV
Convert MP3 to WAV. MP3 is the MPEG-1 Layer III codec, playable on virtually every device. WAV is Microsoft's RIFF container, usually holding 16-bit PCM. Files run about 10 MB per minute, so archive as FLAC..
Why convert MP3 to WAV?
- Larger files than lossy shares with WAV uncompressed quality.
- Keep quality where supported.
- Private, no upload - runs in your browser.
MP3 vs WAV
| Codec | libmp3lame | PCM 16-bit |
|---|---|---|
| Compression | lossy | uncompressed |
| Sample behavior | Quality set by bitrate | Full quality kept |
| Typical use | MP3 is the MPEG-1 Layer III codec, playable on virtually every device. | WAV is Microsoft's RIFF container, usually holding 16-bit PCM. |
When not to convert MP3 to WAV
- Skip WAV for the smallest share: lossless output stays large, so prefer a lossy target when sending MP3 files.
- Keep a master copy: repeated exports stack small losses, so archive MP3 before batch WAV shares.
Limits
Starting point: MP3 - Lossy compressed music near 128-256 kbps. Repeated re-encoding stacks artifacts; convert from the master. Files run about 10 MB per minute, so archive as FLAC. Encode WAV (PCM 16-bit) from MP3 at 256k for music or 128k for speech, starting from the master.
How conversion works
Conversion runs entirely in your browser with FFmpeg WASM. Files never leave your device.
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FAQ
How do I convert MP3 to WAV?
Drop your MP3 file onto this page, choose quality and codec settings, then click Convert. The result downloads as WAV instantly. All processing runs in your browser.
What codec is used for WAV?
The default codec for WAV is PCM 16-bit. You can change audio parameters in Advanced mode.
How do you store my files?
We do not store any processed audio. All conversion happens entirely in your browser using FFmpeg WASM.