WAV to M4A

WAV to M4A Converter

Convert large WAV files to compact M4A audio locally in your browser.

WAV compression workspace

Turn uncompressed WAV audio into a smaller M4A file.

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How it works

1 Choose a WAV audio file.
2 Convert it to M4A in the browser.
3 Download the compact M4A export.

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.

Will M4A be smaller than WAV?

Usually yes. M4A uses AAC compression, while WAV is commonly uncompressed.

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