MP3 to WAV

Convert MP3 to WAV in three steps

1. Choose one or more MP3 files, or try the included sample.
2. Convert to WAV. Keep this tab open while it works.
3. Listen to the preview and save individual files or download the batch as a ZIP.

When MP3 to WAV is the right move

MP3 is the most widely supported lossy audio format, and you will meet it in downloads, podcast hosts, and older recorders. WAV is the format editors, samplers, burners, and speech tools accept without fuss, so converting closes the gap between the file you have and the tool you need. Everything stays on your device while it runs, so private recordings never reach a server.

What happens to the audio inside

The converter opens the MP3 file and reads MPEG-1 Layer III audio. It decodes that audio and writes uncompressed 16-bit PCM that you can edit repeatedly without extra generation loss. Unpacking MP3 audio to WAV does not add detail that the source never had. It gives you a plain, uncompressed copy that anything can read.

Size and settings

One minute of CD-quality stereo takes about 10 MB, and mono at 44.1 kHz takes about 5 MB. Choose WAV when the next step is editing, transcription, or loading the sound into hardware. Choose MP3 when you only want to share or store it. The sample rate and channel layout of your MP3 file are carried across, so a mono recording stays mono.

Troubleshooting and tips

Files with variable bitrate or a long embedded cover image decode normally, but the tags and artwork are not copied into a WAV, so keep the MP3 as your tagged original. Convert a short file first to confirm that your browser can decode it, then run the rest as a batch and download the ZIP. Keep the original MP3 until you have listened to the WAV from beginning to end.