WAV to MP3 Converter

Encode WAV audio as a compact MP3 using a browser-based audio pipeline and an on-device encoder.

Private browser workspaceInput: WAV → Output: MP3

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Your file never leaves this browser

Processing happens locally using browser APIs and on-device code. Closing this tab clears the working data.

How it works

Done in three simple steps

Choose a WAV audio file.

Start the local conversion.

Preview and download the MP3.

Good to know

Are my files uploaded?+

No. Your files stay on your device and are processed locally by your browser.

Why is the MP3 smaller?+

MP3 removes some audio detail using perceptual compression, making files much smaller than WAV.