Convert MP3 to WAV Online — No Upload, No Watermark
WAV is the uncompressed PCM format every DAW (Pro Tools, Logic, Ableton, Reaper) ingests natively for editing and mixing. Converting MP3 to WAV gives you an editable copy.
Drop audio file here
Max file size: ~2 GB (memory permitting)
Where MP3 files come from
The move back to WAV is almost always for tooling: DAWs, transcription software, game engines and audio analysis tools that want raw samples rather than a compressed stream.
What changes when you convert MP3 to WAV
| Encoding | MP3 decoded to uncompressed PCM |
|---|---|
| File size | Grows roughly tenfold |
| Quality | Exactly what the MP3 contained, no better |
Worth knowing first
This does not restore anything. Converting to WAV gives you an uncompressed copy of already-compressed audio, so the artefacts are still there, now stored inefficiently. It is the right step before editing and the wrong one if you were hoping to undo compression.
FAQ
Does converting to WAV improve the audio?
No, and it cannot. The detail MP3 discarded is gone. What you get is an uncompressed container for the same audio, which is useful for editing because nothing further is lost, but the starting quality is unchanged.
Why does my DAW want WAV?
Because it can work on raw samples directly. Decoding MP3 on the fly costs processing time and complicates precise editing, so most DAWs convert on import anyway. Doing it first makes that explicit.
Why is the file suddenly ten times bigger?
WAV stores every sample uncompressed, so size depends only on duration, sample rate and bit depth. A 5 MB MP3 becomes roughly 50 MB of WAV.
Is this MP3 to WAV converter free, with no upload?
Yes. Conversion happens locally in your browser via FFmpeg WebAssembly — your audio never uploads. No signup and no watermark. Length is limited only by the memory your browser gives this tab, which is far smaller on a phone than on a computer.