An m4b file extension is used for Apple MPEG-4 AAC audio files that contain audio books or audio podcast shows downloaded from the Apple iTunes Store. An m4b is similar to M4A audio format, but contain other metadata, like chapter markers, images and hyperlinks. M4B unlike M4A is able to remember the position, where it was paused.

There is one other file type using
the M4B file extension!

empty icon.m4b - Myst IV: Revelation game archive

Detailed description

Software that open m4b file

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M4B file extension - MPEG-4 Audio Layer audio book

What is m4b file? How to open m4b files?

File type specification:

Audio and sound file type icon Audio and sound file type

m4b file icon: m4b filetype icon

The m4b file extension is associated with the Apple MPEG-4 audio bookmarkable file format that is used to store audio books and audio podcasts.

The M4B file format is similar to M4A AAC MPEG-4 audio file format. However M4B file contains other metadata including chapter markers, images, and hyperlinks. M4A files cannot be bookmarked (M4A file doesn't remember paused time), whereas M4B files can.

M4B audio books and audio podcasts are available on the Apple iTunes Store. Audio books are often distributed with Apple Digital Rights protection called FairPlay DRM.

The default software associated to open m4b file:

Apple iTunes for Windows icon

Apple, Inc. logoApple iTunes for Windows  Microsoft Windows software

Company or developer:
Apple, Inc.

A digital media application for playing and organizing digital music and video files. Also is used to manage Apple portable devices such as iPod, iPhone and iPad. iTunes has integrated iTunes Store service, where can users buy and download digital music, videos, applications for iOS devices, audiobooks, podcasts, ringtones etc. iTunes is distributed as a free software.

Apple iTunes for Mac icon

Apple, Inc. logoApple iTunes for Mac  Apple macOS / Mac OS X software

Company or developer:
Apple, Inc.

Apple iTunes is multimedia application distributed with Apple macOS operating system. It organizes and plays digital music and videos. iTunes is also used to manage Apple's portable devices, such as iPod, iPhone and iPad.

Help how to open:

Use Apple iTunes, VLC Media Player, Winamp etc. to playback M4B audio book (podcast) files.

How to convert:

Use AVS Audio converter, or TuneClone Audio Converter to convert M4B audio book to any other audio file format.

Find conversions from m4b file:

m4b to mp3

m4b to ogg

Find converter to m4b file type:

mp3 to m4b

List of software applications associated to the .m4b file extension

Recommended software programs are sorted by OS platform (Windows, macOS, Linux, iOS, Android etc.)
and possible program actions that can be done with the file: like open m4b file, edit m4b file, convert m4b file, view m4b file, play m4b file etc. (if exist software for corresponding action in's database).

Click on the tab below to simply browse between the application actions, to quickly get a list of recommended software, which is able to perform the specified software action, such as opening, editing or converting m4b files.

Software that open m4b file - MPEG-4 Audio Layer audio book

Programs supporting the exension m4b on the main platforms Windows, Mac, Linux or mobile. Click on the link to get more information about listed programs for open m4b file action.

Microsoft Windows:

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