MP3 to WAV Converter
MP3 to WAV Converter Online, Free
Convert MP3 files to WAV (16-bit PCM) in your browser. Convert one file or many and download WAV files or one ZIP. Nothing is uploaded: the conversion runs on your device. The sample rate and the number of channels of the MP3 are kept.
How to convert MP3 to WAV
- Drop your MP3 files into the box above or click it to choose them.
- The conversion starts at once; WAV is very fast.
- Download the WAV files or all of them in one ZIP.
Does MP3 to WAV improve the quality?
No. MP3 is lossy: part of the sound was thrown away when the MP3 was made, and no program can bring it back. A WAV made from an MP3 contains exactly what the MP3 sounds like, in a bigger file, 4 to 10 times larger: 5 minutes of stereo music are about 5–12 MB as MP3 and about 53 MB as WAV. The conversion itself adds no further loss, because WAV stores the decoded sound without compression (16 bit, rounded and not changed in any other way). That is why “MP3 to WAV without loss of quality” is possible, but “quality improvement” is not.
Why convert MP3 to WAV then?
- Audio editors, DAWs and video editors that work better with, or only accept, uncompressed audio.
- Burning an audio CD (CDs use 16 bit, 44.1 kHz PCM).
- Hardware samplers, game engines, telephony and embedded devices that need WAV.
- Avoiding another lossy step: edit a WAV and compress to MP3 only once at the end.
WAV vs MP3
| MP3 | WAV | |
|---|---|---|
| Compression | Lossy | None |
| 5 minutes of stereo music | 5–12 MB | about 53 MB |
| Best for | Listening, sharing | Editing, CDs, archives |
Convert MP3 to WAV on a computer
- FFmpeg:
ffmpeg -i input.mp3 output.wav - Audacity: open the MP3, then File → Export → Export as WAV.
Frequently asked questions
What WAV format is created?
Standard PCM WAV with 16 bits per sample, mono or stereo, with the sample rate of the MP3 (for example 44.1 kHz or 48 kHz).
Is the conversion free and private?
Yes. No registration, no watermark, and the audio never leaves your browser.
What is the size limit?
500 MB and 60 minutes per file. A 60 minute stereo WAV is about 635 MB.
Can I convert WAV to MP3?
Yes, with the WAV to MP3 converter, or the audio converter for other formats such as M4A, OGG and FLAC.
MP3 encoding: LAME through lamejs (LGPL).
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