Convert M4B to MP3 - online and free

m4b mp3

How to convert a M4B to a MP3 file?

  1. Choose the M4B file that you want to convert.
  2. Select MP3 as the the format you want to convert your M4B file to.
  3. Click "Convert" to convert your M4B file.

Zamzar Pro Tip: You can use the Quicktime player to open M4B files. This is a free player bundled with Macs and downloadable for Windows.

Step 2 - Convert your files to

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Step 3 - Start converting

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M4B M4B (Audio)

File extension .m4b
Category Audio File
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).
Actions
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.
Associated programs
  • Apple iTunes
  • Apple QuickTime Player
Developed by Apple
MIME type
  • audio/m4b
Useful links

MP3 MP3 (Audio)

File extension .mp3
Category Audio File
Description MP3 is a digital music format which allows CD tracks to be reduced to around a tenth of their normal size without a significant loss of quality. MP3 gets rid of a lot of the information recorded in a song that our ears are not able to hear and then uses complex algorithms to reduce the file size. This then enables you to get hundreds of songs on to a CD and it also has opened up a new market over the internet - the download market as download times have been significantly reduced.
Actions
Technical Details The MP3 format is a lossy format. That means that an MP3 file does not contain 100% of the original audio information. Instead, MP3 files use perceptual coding. In other words, that means it removes the information that your ear doesn't notice thereby making the file smaller. The reason lossy formats are used over RAW is that RAW audio files are too large to travel over the internet at any great speed. By using lossy formats it enables even dial up users to download mp3 files at a reasonable speed. RAW file formats generally require 176,000 bytes per second compared to a lossy format which requires 17,600. The difference is massive and so are the download times.
Associated programs
  • RealOne
  • WinAmp
  • iTunes
  • Windows Media Player
Developed by Moving Picture Experts Group
MIME type
  • audio/mpeg
Useful links

M4B Convert M4B file

Using Zamzar, it is possible to convert M4B files to a variety of other formats

  • m4b to aac (Advanced Audio Coding File)
  • m4b to ac3 (AC3 Audio File)
  • m4b to flac (Free Lossless Audio Codec)
  • m4b to m4a (Compressed video file)
  • m4b to m4r (iPhone Ringtone File)
  • m4b to mp3 (Compressed audio file)
  • m4b to mp4 (MPEG-4 Video File)
  • m4b to ogg (Ogg Vorbis Compressed Audio File)
  • m4b to wav (Windows audio file)
  • m4b to wma (Windows Media Audio)

M4B to MP3 - Convert file now

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