File converter  /  Audio  /  M4B

Online M4B converter

Easily convert music or sound files to the m4b format for free using our online converter.

Converting your file to m4b is easy with these steps.

Icon of «Upload file»
Step 1

Upload file

You can select the file you want to convert from your computer, Google Drive, Dropbox or simply drag and drop it onto the page.
Icon of «Select «to m4b»»
Step 2

Select «to m4b»

Choose m4b or any of the other 200+ supported formats you'd like to convert to.
Icon of «Download your m4b file»
Step 3

Download your m4b file

Please wait for the conversion to complete, then click on the download button to obtain your converted file in the m4b format.

A free and online converter for m4b files.

Fast and easy
Simply drag and drop your m4b files onto the webpage, and you'll be able to convert them to over 250 different file formats, all without having to register, provide an email address, or include a watermark.
You don't need to worry about security.
As soon as you upload your m4b files, we instantly delete them. Converted files are then deleted after 24 hours. Furthermore, we ensure that all file transfers are secure through advanced SSL encryption.
Everything is stored in the cloud.
You don't have to go through the hassle of installing any software. We handle all m4b conversions in the cloud, which means that none of your computer's resources will be used in the process.


Category🔵 audio
Description🔵 M4B is a filename extension for MPEG-4 Part 14 multimedia container format. It is a type of audiobook format that can be used for storing spoken-word audio books, podcasts, and other spoken content. The M4B format is similar to the M4A format, which is used for storing audio-only files, but M4B is specifically designed for audiobooks.
Technical details🔵 The M4B format is based on the MPEG-4 Part 14 standard, which specifies how digital audio and video content should be organized and stored in a file. Like other MPEG-4 files, M4B files use the AAC (Advanced Audio Coding) compression algorithm to reduce the size of the audio data while maintaining high sound quality. One of the key features of the M4B format is its ability to support chapter markers, which can be used to divide the audiobook into sections, making it easier for listeners to navigate and find specific parts of the content. This feature is especially useful for longer audiobooks that may have multiple parts or sections. The M4B format can be played on a variety of devices, including smartphones, tablets, and computers. It is supported by popular media player software such as iTunes, VLC, and Windows Media Player. M4B files can also be converted to other audio formats such as MP3, WAV, and FLAC using software tools designed for this purpose.


❓ How do I change m4b?
To get started, either pick a file you want to convert from m4b and select it or drag and drop it into the conversion tool. Next, select the desired format that you wish to convert your file to. Once you have selected the format, click the "convert" button and wait for the tool to finish converting your file.
⏳ What is the estimated time it will take to convert m4b?
Typically, image conversions only take a few seconds, so you can expect a speedy conversion when changing m4b
🛡️ Can I trust OnlineConvertFree to convert m4b securely?
Absolutely! We take your security seriously, and guarantee the protection of your uploaded and converted files. No one will have access to your information since we delete all files once the conversion process is complete. You can trust that all types of conversions, including m4b, are 100% safe on OnlineConvertFree.
📱 Is it possible to convert m4b without having to install any software?
Yes, that's right! OnlineConvertFree doesn't require any installation, which means that you can convert any files, including m4b, on your computer or mobile device, completely online.

m4b converter