How to Convert MP3 to M4B on Windows 10/Mac/Online

MP3 to M4B Converter is becoming an everyday need as the popularity of QuickBooks is increasing. EaseUS proves to be the best one for Windows users, but other choices are also available along with the conversion procedures for Windows, Mac, and Online.

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Jane Zhou

Updated on Nov 24, 2023

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MP3 (MPEG-1 Audio Layer) is an audio format preferred for storing any song or the whole CD. Being a lossy compression format, it deletes the noisy sound without getting noticed. Also, it takes less space on the device. Despite all these features, it is wise to convert MP3 to M4B when it comes to audiobooks. Why?

M4B (MPEG-4 file extension) is an audiobook format for the best sound quality, which is what people seek to get a fantastic listening experience. So, an MP3 to M4B converter is needed to carry out the process. Here we have jotted down a list of best free audio converter on Windows, Mac, and Online.

Convert MP3 to M4B on Windows 10

Two converters are provided in this part. Based on your needs, choose a suitable tool. 

1. EaseUS Video Converter

For any media operation, EaseUS Video Converter is proved to be the best one, which is the ideal software that can convert MP3 files to your desired format. Supporting almost 500+ audio formats, it can work as an MP3 to M4B converter. Also, its lightning-speed conversion and GPU acceleration technology make the conversion process faster than ever. You don't need to worry about the quality as this software offers you different output presets for setting the file quality before conversion.

Moreover, its batch conversion feature saves your effort and time by converting multiple MP3 files at the same time. You can even extract audio from video as MP3 and then convert it to M4B format. It's also accessible to play the converted file on any device, i.e., Phone, Tablet, etc.

Key Features:

  • 30X faster converting speed to increase efficiency
  • Support 1000+ audio/video formats
  • Easy-to-use and friendly interface
  • Combine media files into one single file
  • Make audio extraction from videos

Now, download this tool to make your conversion!

How to convert your MP3 file to M4B easily:

Step 1. Download and launch this program. Next, select the "Audio Converter" option from the left sidebar for audio conversion, and click "Choose Files" to import the audio file.

Add media files

Step 2. Click the gear icon to select your output audio format at the bottom. Besides, you can change the saving path, enable the high-speed conversion, GPU acceleration, or merging functions if needed here.

Choose format

Step 3. You can click the "Edit" button to change the file name, bitrate, sample rate, and other settings for your output file.

Adjust settings

Step 4. Once done, you can click the "Convert" or "Convert All" button to begin your audio conversion.

Start conversion

2. Switch Sound File Converter

Switch Sound File Converter is a comprehensive tool to help convert MP3 to M4B and other popular audio formats. The conversion process of this software is efficient. Using it, you don't have to worry about your converted files' quality anymore.

Do you need an MP3 to M4B converter that can convert multiple files in a minimum time? This tool lets perform this task via its batch conversion feature. Despite conversion, you can also extract the audio from any media or video files.

switch convert mp3 to m4b

Here is a tutorial on how to convert MP3 file to M4B via Switch Sound File Converter:

Step 1. Download, install and then open the converter. Click the green "Plus" sign to upload the MP3 file.

Step 2. Choose the M4B from the drop-down menu of the output format. Also, choose the saving folder. 

Step 3. Now, click the "Convert" button, and you can finish the conversion. 

Convert MP3 to M4B on Mac

If you are a Mac user and looking for a credible MP3 to M4B converter, then iTunes should be your choice. iTunes is a built-in Mac application that can assist you in various audio operations. So, you can convert MP3 files to M4B easily.

To your benefit, there is the availability of audio files feature in the iTunes store. Its interface is straightforward, and all tasks can be carried out on a single window. The purpose of MP3 to M4B conversion is the audio file quality, ensuring no quality loss during the process. Also, downloading, organizing, and playing different files are at your fingertips.

itunes convert mp3 to m4b

Let's find out how to convert MP3 files to M4B via iTunes:

Step 1. Open the iTunes App on your Mac. Select all the MP3 files that you need to convert. 

Step 2. Now, press "Get info". A pop-up window will appear. 

Step 3. Click "Options" > "Audiobooks" and then press "Ok". You are done with the conversion.

Convert MP3 to M4B Online

The one-time users mostly prefer online software for conversion. Here is an excellent MP3 to M4B converter to perform your conversion function. The Video Converter is a free file conversion software that is efficient, reliable, and safe enough to complete your conversion tasks. You can convert MP3 files to M4B or up to 40+ audio/video formats without charge.

Also, this tool helps you convert media files at a faster pace. You can sync Google Drive and Dropbox with the tool to upload your MP3 files effortlessly. Compression is easier by adjusting the quality of the output files (M4B). 

convert mp3 to m4b online

Here is a list of steps on how to make MP3 to M4B conversion:

Step 1. Open the Video Converter on your browser. Click "Upload Your Media" and select your MP3 file. 

Step 2. Choose your output format as "M4B". Click the "Settings" button to edit your file if needed.

Step 3. Now, Click "Convert" and press "Download" if the file does not get downloaded automatically. 


To overcome sound quality issues, people need to convert MP3 to M4B and get an excellent listening experience. There are many converters available in the market, and EaseUS Video Converter is one of the best tools on Windows. Besides conversion, this tool allows various options such as merging media files and so on. 

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  • Jane Zhou

    Jane is an experienced editor for EaseUS focused on tech blog writing. Familiar with all kinds of video editing and screen recording software on the market, she specializes in composing posts about recording and editing videos. All the topics she chooses are aimed at providing more instructive information to users.…
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