MP3 to WAV converter
Turn MP3 files into WAV in your browser. Nothing is uploaded.
Your files never leave your device.
Quick answer
To convert MP3 to WAV, drop your MP3 files in and press Convert. The conversion runs in your browser tab, so your audio is never uploaded.
Drop files here
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How to convert MP3 to WAV
- Drop your MP3 files onto the box, or press Choose files.
- There are no quality settings for this one: the sound is kept exactly as decoded.
- Press Convert. A progress bar shows how far along it is.
- Download your WAV file, or all of them as a ZIP.
MP3 is the most widely supported audio format. It plays on every phone, car stereo and music app, and its lossy compression keeps files small. WAV holds uncompressed audio. The files are large, but nothing is thrown away, which is why editors and studios like it.
Common questions
Why convert MP3 to WAV?
MP3 is the most widely supported audio format. It plays on every phone, car stereo and music app, and its lossy compression keeps files small. WAV is a good choice when you want to edit the sound or keep it without further loss. WAV holds uncompressed audio. The files are large, but nothing is thrown away, which is why editors and studios like it.
Will the sound quality drop?
Converting to WAV adds no further loss. If the original was already compressed (for example MP3 or AAC), that earlier loss stays: WAV cannot bring back what was removed.
Is my audio uploaded anywhere?
No. The conversion happens inside your browser tab, so your audio never leaves your device. We cannot see it or keep a copy.
Can I convert many files at once?
Yes. Drop several files in and they are converted one after another. When they finish you can download each one, or all of them together as one ZIP.
Why was the first conversion slow to start?
The first time you convert audio or video, your browser downloads the conversion engine (ffmpeg, about 30 MB) from a public CDN. After that it is cached, so the next ones start straight away. Your files are not part of that download.
How big a file can I convert?
Everything runs in your browser's memory, so the limit is your device. We suggest about 500 MB on a computer and 100 MB on a phone. Beyond that, the tab may slow down or run out of memory. A computer is much faster than a phone.