Free Online M4B Converter – Convert Audiobook M4B Files

Our free online M4B Converter lets you convert M4B audiobook files to popular audio formats and vice versa. M4B is Apple’s audiobook format, similar to M4A but with chapter markers. Convert M4B files to MP3, WAV, or AAC to extract music ringtones, audio ringtones, or create mobile-friendly audio from your audiobooks.

1 Upload

2 Convert

3 Download

Drag & Drop your audio file here

or click to browse files

Supports: MP3, WAV, FLAC, AAC, OGG, M4A, WMA, AIFF, ALAC, OPUS, AMR, MID, RAW & more

filename.mp3 0 KB

INPUT FORMAT

OUTPUT FORMAT

MP3

WAV

0% Converting

Loading FFmpeg engine…

Conversion Complete!

Your file has been converted successfully.

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M4B Converter Features

🎵 Convert M4B audiobook files to MP3, WAV, AAC, FLAC, and more
📱 Extract audio for mobile ringtones and audio ringtones
🔄 Supports multiple input and output audio formats
⚡ Fast cloud conversion with no delays
🔒 Secure and private file handling
💻 Works on all devices including iPhone, Android, and desktop
🆓 100% free — no sign-up required
🎚️ High-quality audio output
📂 Simple drag-and-drop upload
🌐 No installation required

How to Use M4B Converter

Upload Your M4B File — Click “Choose File” or drag and drop your M4B audiobook file into the upload box.
Select Output Format — Choose your desired output format (MP3, WAV, AAC, FLAC, etc.).
Click “Convert Now” — Press “Convert Now” to begin.
Download the Converted File — Click “Download Converted File” to save your music ringtone or audio file.
Convert Another File — Click “Convert Another File” for more.