MP3 to WAV: help & limits

1. Choose an MP3 up to ten minutes long.
2. Choose Convert to WAV.
3. Listen to the result and download your copy.

Examples

• Turn a 30-second MP3 voice clip into a WAV accepted by an editing application.
• Convert a short stereo sound effect without sending the recording to a website server.

Creates 16-bit PCM WAV at 48 kHz, keeping one or two decoded channels. WAV is usually larger than MP3. Conversion cannot restore detail lost in MP3 encoding. Tags, artwork, and original container metadata are not copied. The browser may resample the recording; this is not a bit-perfect archival transfer.

One file, up to 50 MiB and 10 minutes. Mono or stereo only. Browser decoding support varies, especially for unusual WAV encodings or damaged MP3s. A low-memory device may fail within these limits. There is no server fallback.

Duration is checked before decoding and checked again afterward. Decoded samples are limited to 256 MiB. Decoding uses browser memory; malformed metadata can bypass the first duration check. Encoding runs in a worker. Cancellation discards the result and closes the decoder, but the browser may finish an already-running decode internally.

File bytes, names, and audio samples stay in browser memory. No recording is uploaded, logged, or saved in browser storage. Downloads stay wherever you save them. Reset releases previews and results; it does not securely erase RAM.

If decoding fails, choose an original file or try an updated browser. If a download opens in a player, use your browser’s Save or Share action. Keep the original until you have checked the output.

No. It changes the file representation. Detail already lost during MP3 compression cannot be recovered.

WAV stores uncompressed samples. Stereo output uses about 192,000 bytes per second plus its header. Use MP3 when compact delivery matters.