M4B to WEBM Converter

Convert M4B to WEBM online, for free.

Choose Files
  • From Device
  • From Dropbox
  • From Google Drive
  • From URL
Or drop files here. Max file size 1GB. Sign Up for more

How to Convert M4B to WEBM?

  1. Click the “Choose Files” button to select your M4B files.
  2. Click the “Convert to WEBM” button to start the conversion.
  3. When the status change to “Done” click the “Download WEBM” button

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, look for the icon).

Free & Secure

Our M4B to WEBM 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 2 hours.

Read More
Read More

Convert Your M4B files to other formats

FreeConvert.com can convert your M4B files to these other formats:

Related Tools

Convert other files to WEBM format

FreeConvert.com can convert your other files to WEBM format: