An M4B is one audiobook file with chapters and a cover. All to Audiobook makes one from your own book, and your file is never uploaded.
Make an M4B nowHow it works
- Open your book or document and pick a chapter to start from.
- Choose a voice and press Convert book.
- Download one M4B audiobook with Pro.
M4B or MP3
An MP3 audiobook is many files, one for each chapter. An M4B is one file with the chapters inside it, so an audiobook app shows the chapter list and the cover.
M4B or M4A
They are the same kind of audio file. The B tells apps that the file is an audiobook.
Questions
Can I make an M4B from a PDF?
Yes. Pro turns a whole PDF or EPUB book into one M4B audiobook with chapters and a cover.
Can I change the title and cover?
Yes, with Pro. You can change the title, the author and the cover before you make the M4B.
Which apps play an M4B?
Apple Books, BookPlayer, Voice, VLC and Audiobookshelf.
Is my file uploaded?
No. Your file is opened in your browser, and the audio is made on your computer.
How to play an M4B on a Mac
Double-click the file. It opens in Apple Books with its chapters.
How to play an M4B on Windows
VLC, a free media player, plays an M4B with its chapters.
How to play an M4B on iPhone
AirDrop the M4B from your Mac to your iPhone, and open it in a free audiobook app such as BookPlayer. It plays there with its chapters.
To listen in Apple Books on your iPhone, open the M4B in Apple Books on your Mac first. Then connect your iPhone with a cable, select it in the Finder, click Audiobooks, turn on audiobook syncing, and click Apply.
How to play an M4B on Android
Copy the M4B to a folder on your phone and add that folder in a free audiobook app such as Voice. Voice remembers where you stopped.
What is inside the M4B
Each chapter starts with its title, read once, and the title is also the chapter's name in the M4B. The file also holds the book title, the author and the cover.