M4B Converter
Convert files to and from M4B online
M4B
Audiobook Used By Apple Books And ITunes
m4b extension is an audiobook generally used by Apple books and iTunes. The Audio used in this format is stored in MPEG-4 and compressed by using AAC encoding. An M4B file is very similar to M4A but having support the audiobook related features, such as bookmarking and chapter breaks.
Convert Between All Audio Formats
Our audio converter supports over a dozen popular audio formats including MP3, WAV, WMA, M4A, FLAC, AAC and more.
Lightning Fast Audio Conversion
Convert your audio files super fast. Our hyper-efficient encoding and decoding algorithms give you results in seconds.
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Tweak audio settings like bitrate, sample rate, channels, and metadata to customize your converted audio files.
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Supported Conversions
| Convert from M4B | Conversions |
| 1 | m4b to aac |
| 2 | m4b to aiff |
| 3 | m4b to flac |
| 4 | m4b to m4a |
| 5 | m4b to mp3 |
| 6 | m4b to wav |
| 7 | m4b to wma |
| Convert to M4B | Conversions |