Units Converter

AU to M4B converter

On your device

Convert AU to M4B in your browser. Add your files, adjust the available settings, and download M4B files. No file upload or account required.

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M4B to AUAU to multiple formatsBatch to M4B

Convert AU to

All outputs
AU to 3G2AU to 3GPAU to AACAU to AC3AU to AIFAU to AIFCAU to AIFFAU to ALAC

How to convert AU to M4B

  1. Choose your AU files.
  2. Keep M4B selected. Open Settings to adjust available options.
  3. Select Convert, then download the result or a ZIP of completed files.