AUDIO TOOLS / DEVTOOLS
MP3 to WAV
Decode an MP3 file and save the audio as a WAV file in your browser.
Accepted input: MP3 · Maximum file size: 50 MB. The audio stays on this device. The first conversion downloads a 32 MB WebAssembly engine from this site.
Conversion uses FFmpeg WebAssembly in a browser worker. Your audio file is not uploaded. MP3 and OGG output are lossy; MP3 to WAV cannot restore detail lost during MP3 encoding.
ABOUT THIS TOOL
What MP3 to WAV does
Decode MP3 audio and write it as a PCM WAV file locally with WebAssembly. WAV output is usually much larger and cannot restore audio information removed by the original MP3 encoding.
Useful when an editing tool or workflow needs uncompressed PCM audio. Converting MP3 to WAV does not improve source quality.
How to use MP3 to WAV
- Choose an MP3 audio file within the displayed size limit.
- Start the browser audio engine if it has not already loaded.
- Convert to PCM WAV, preview the result, and download it.
ANSWERS AND DETAILS
Frequently asked questions
What does this tool do?
Decode MP3 audio and write it as a PCM WAV file locally with WebAssembly. WAV output is usually much larger and cannot restore audio information removed by the original MP3 encoding.
When is this tool useful?
Useful when an editing tool or workflow needs uncompressed PCM audio. Converting MP3 to WAV does not improve source quality.
Is my input uploaded?
No. This tool runs in your browser and does not send the value you enter to a processing server.