M4B Converter

Convert M4B files online for free.



Choose Files
  • From Device
  • From Dropbox
  • From Google Drive
  • From OneDrive
  • From Url
Max file size 1GB. Upgrade for more Sign Up for more

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How to Convert a M4B file?

  1. Click the “Choose Files” button to select your M4B files.
  2. Then select a target format and click the "Convert" button
  3. Once the conversion finishes, click the "Download" button to save the file.

Convert Any File

FreeConvert supports 500+ file formats. Simply upload your M4B files and select a popular file format to convert them to. Easily share your M4B files (in a widely supported format) after conversion.

Best Quality

We use both open-source and custom software to make sure our conversions are of the highest quality. In most cases, you can fine-tune conversion parameters using “Advanced Settings” (optional).

Free & Secure

Our M4B converter is free and works on any web browser. We guarantee file security and privacy. Files are protected with 256-bit SSL encryption and automatically deleted after a few hours.



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