Free audio converter
MP3 to WAV Converter
Turn an MP3 file into an uncompressed WAV file directly in your browser, using the Web Audio API. Nothing is uploaded to a server.
Convert MP3 to WAV
Drop an MP3 file here, or click to choose a file
Processed locally in your browser — nothing is uploaded.
100% local — your file never leaves your device.
Frequently asked questions
Is this MP3 to WAV converter really free?
Yes, entirely free, with no account, watermark, or file limit imposed by a server — because there is no server involved.
Does my audio file get uploaded anywhere?
No. Decoding and re-encoding both happen locally in your browser tab. Your file never leaves your device.
Why convert MP3 to WAV?
WAV is uncompressed, which many audio editors, DAWs, and older hardware/software expect instead of the compressed MP3 format.
Doing this by hand every week? That's exactly what I remove.
If this conversion is one small step in a bigger workflow — say, files arriving by email, getting converted, renamed and filed by a person every time — I build software that does the whole thing automatically. My clients get back up to 18 hours a week this way.
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