How to convert M4B files to WAV online?

Step 1.

Upload M4B-file

Click "Choose File" button to select a m4b file on your computer. M4B file size can be up to 50 Mb.
Step 2.

Convert M4B to WAV

Click "Convert" button to start conversion.
Step 3.

Download your WAV

Let the file convert and you can download your WAV file right afterwards.

Information about M4B and WAV file formats

Name M4B WAV
Full name MPEG-4 Audio Layer Bookmarkable File WAV - Waveform Audio File Format
File extension .m4b .wav .wave
MIME type audio/m4b audio/vnd.wave, audio/wav, audio/wave, audio/x-wav
Developed by Apple Microsoft & IBM
Type of format Music File audio file format, container format
Description Audiobook and podcast files which also contain metadata including chapter markers, images, and hyperlinks can use the extension .m4a but more commonly use the .m4b extension. M4b files support metadata for chapters and bookmarking on supporting players and most commonly uses AAC (Advanced Audio Codec). Waveform Audio File Format is a Microsoft and IBM audio file format standard for storing an audio bitstream on PCs. It is the main format used on Windows systems for raw and typically uncompressed audio. The usual bitstream encoding is the linear pulse-code modulation (LPCM) format.
Technical details The audio in a M4b file is encoded with the AAC compression format and can therefore be protected with Apple's FairPlay DRM copy protection system. M4b files can contain metadata as defined by the format standard and in addition can contain Extensible Metadata Platform (XMP) metadata. Though a WAV file can contain compressed audio, the most common WAV audio format is uncompressed audio in the linear pulse code modulation (LPCM) format. Audio in WAV files can be encoded in a variety of audio coding formats, such as GSM or MP3, to reduce the file size.
Associated programs Apple QuickTime Player, Apple iTunes ALLPlayer, VLC media player, Media Player Classic, MPlayer, RealPlayer, Winamp.
Wiki https://en.wikipedia.org/wiki/MPEG-4_Part_14 https://en.wikipedia.org/wiki/WAV