Extract WAV audio

MP4 to WAV Converter

Extract audio from an MP4 and save it as a WAV file for editing, transcription, or cleanup.

WAV extraction workspace

Create an uncompressed audio file from an MP4.

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How it works

1 Choose an MP4 with audio.
2 Extract the soundtrack as WAV.
3 Download the WAV file.

FAQ

Is my file uploaded anywhere?

No. The conversion runs in your browser with WebAssembly, so the selected file stays on your device.

Why can conversion take a while?

Large videos need to be decoded and encoded locally. Keep the tab open while the browser finishes the export.

Does the tool add a watermark?

No. The exported file is watermark-free.

Why choose WAV instead of MP3?

WAV is larger, but it is easier to edit and avoids another lossy compression pass.

Want professional polish?

The browser tools are great for quick format work. Aufzeichna's desktop app is built for polished screen recordings with smooth cursor motion, cinematic zoom, and export control.

Check out the desktop app