How to Convert MP3 to M4B Online?

Step 1

Upload MP3 File

Drag and drop the MP3 files that you want to convert.

Step 2

Convert MP3 to M4B

Click CONVERT to convert your MP3 file(s).

Step 3

Download Converted M4B

Click DOWNLOAD to save your converted M4B file(s).

Information about MP3 and M4B File Formats

File Extension
.mp3
Description
MP3 is a standard audio format developed by Moving Picture Experts Group and uses MPEG-1 and MPEG-2 standardizations. MP3 uses lossy data compression, meaning that it loses quality over time. This sound format comes with a .mp3 filename extension and is today the most common audio format on websites and multimedia players.
Associated Programs
Windows Media Player
iTunes
Mplayer
VLC Media Player
Developed By
Moving Picture Experts Group
MIME Type
audio/mpeg
File Extension
.m4b
Description
M4B is an audio filename extension for AAC format, which is developed by Apple Inc. It is mainly used on podcast and audiobook files. Typically, M4B files contain audio and other metadata like images, hyperlinks, and chapter markers. M4B files are DRM copy-protected and can be opened on Apple iTunes and QuickTime Player.
Associated Programs
Apple iTunes
Apple QuickTime Player
Developed By
Apple Inc.
MIME Type
audio/x-m4b

Popular MP3 and M4B Conversions

Online UniConverter (Media.io)

Convert, Compress, Edit Video/Audio/Image Files Free Online.

FREE SIGN UP UPGRADE NOW