Convert MP3 to WAV
Turn an MP3 into an uncompressed WAV that every editor, DAW and CD burner accepts. The file is decoded on your own device and never uploaded, however long the recording is.
- Processed on your device
- No upload, no waiting
- No signup, no watermark
How it works
Add your MP3
Drop the file in — or an M4A, AAC, OGG, FLAC or WMA, which all convert here too. Its length, sample rate and channels are shown straight away.
Choose the bit depth
16-bit is the CD standard and what most software expects. 24-bit leaves headroom if you are going to process the sound further; 32-bit float is for mixing.
Download the WAV
One file, named after the MP3, with every sample the MP3 could give.
Frequently asked questions
Does converting MP3 to WAV improve the quality?
No, and anyone who tells you otherwise is selling something. An MP3 discarded detail when it was made, and nothing can put that back. What a WAV does is stop the loss continuing: from here on the sound is stored exactly, so editing, trimming and re-saving cost nothing more. That is the real reason to convert.
Why is the WAV so much bigger?
Because it stores every sample rather than an approximation. A minute of 16-bit stereo at 44.1 kHz is about 10 MB whatever the source was, so a 3 MB MP3 becomes roughly a 30 MB WAV. That is the price of not compressing, and it is why WAV is a working format rather than a listening one.
Which bit depth should I choose?
16-bit unless you know you need more. It is the CD standard, every program reads it, and it is already beyond what an MP3 contains. Choose 24-bit if the file is going into a mix and will be processed further, and 32-bit float only if your editor asks for it.
Is my file uploaded?
No. The MP3 is decoded and the WAV written by your own browser, so nothing is sent anywhere — no upload wait, no copy of your recording on someone's server, and it works with the Wi-Fi off.
Is there a size limit?
Only your device's own storage. Because the file is never uploaded there is no server limit to hit, and the WAV is written to the browser's own storage as it is made rather than held in memory, so a long recording converts without taking the tab down.
Which formats can I convert from?
MP3, M4A, AAC, OGG Vorbis, Opus, FLAC and WAV, plus WMA and the sound inside AVI, FLV and MPEG files — those last are decoded by our own build of the ffmpeg libraries, because no browser reads them on its own.
Good to know: A WAV cannot restore detail the MP3 already discarded; it stops further loss, it does not undo the first one. WAV files over 4 GB are not readable by much software, which a long recording at 24 or 32-bit can reach.