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  • Convert M4B format or other 1,000+ formats, including MP3, AAC, MKA, WMA, MP4, etc.
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How to Convert M4B to MP4 format in 2024

by Christine Smith • 2024-02-20 11:37:22 • Proven solutions

Listening to stories has always been something that we only attach to our childhood. In contrast to those golden days when someone elder from the family would tell you stories about different things, you can still re-live these golden moments, sans the presence of any elders, with the M4B audiobook and podcast files available for you.

However, these are usually large files and therefore are preferred when they are converted into a file with a small size. When you think of converting your M4B files, there can be so many conversion options and file formats available to you. And MP4 format is the one that is compatible with all your devices and will not eat up the whole of your device’s space. So, if you’re planning to do the same, here are some ways to help you convert M4B file to MP4.

Part 1. How to convert M4B to MP4 on PC

While looking for how to switch the file from M4B to MP4 format, using Wondershare UniConverter (originally Wondershare Video Converter Ultimate) will be one of the best options. Packed with various features, this is a great platform for compressing the size of the file with customizable settings and without compromising the quality. It supports more than 1000 videos and audios formats, making it easier for the user to select the most comfortable format.

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  • The platform has handy features to complete the task of conversion
  • It can convert more than 1000 videos and audios formats
  • The conversion speed of the platform is 30 times faster
  • It can convert videos for different devices- PC, laptop, tablet and smartphones
  • It allows the users to convert multiple files at a time, thus saving their time
  • Its advanced-editing features help you gain professional-caliber work
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Wondering how to use Wondershare UniConverter to convert M4B to MP4 files on your computer? Here is the detailed guide with step-by-step instructions:

Step 1 Add the videos.

Download and launch the Wondershare UniConverter on your PC, move your cursor to the left-hand side of the pane, and select the Video Converter tab. Then add files to the screen that you want to convert.

add files

Step 2 Select an output format.

Click to open the Output format menu, available on the lower section of the main page. Followed by the Video tab, select the output format you prefer from the list, and select the resolution you want.

choose the format

Step 3 Convert the videos.

While doing this step, make sure that the High-speed conversion button available on the top-right corner of the screen is turned on. Select a destination folder in the File Location field at the bottom and click on the Convert button.

convert M4B to MP4

Step 4 Access the converted videos.

Finally, when your video is converted to the desired file, move to the Finished tab on the top of the screen, and click on the Open button, available just at the right side of the converted videos pane.

Bonus: Share the converted videos

You can upload or share the converted videos to your YouTube and Vimeo channels directly, right after the conversion. Just click on the Share icon and choose the video you wish to share.

Part 2. How to convert M4B to MP4 online

There are several tools available online that help you to convert M4B file to MP4 easily and quickly. Using these tools ensures that you get the best-quality file converter, while it also makes it easier for you to convert and save the converted file to your device securely. The two most useful online converters to get the task done are mentioned below.

FreeConvert is a name you can trust and rely upon when it comes to converting your M4B videos to MP4 files online. The platform has both open-source and custom-software to ensure the conversions are of the highest quality and live up to your expectations. - How to convert your file?

Step 1: To start with this platform, choose the file that needs to be converted. For this, tap on the Choose Files button given on the website.

add files

Step 2: Move to the Advanced Settings section once the file is added and select/alter the audio options as per your requirements. This step is optional.

choose the format

Step 3: Lastly, tap on Convert to MP4 and enjoy the finished product with high-quality. Pros & Cons -


● It allows you to convert any file

● It offers guaranteed file security and privacy

● It works on any web browser


● You need to understand the audio parameters for making a change in the file

● The platform doesn’t offer any pre-defined guidelines for new users

● Needs high internet connection


Zamzar is an easy-to-use online video converter and converts M4B to MP4 online quickly. It is one of the most popular online tools and works in a hassle-free way.

Zamzar - How to convert your file?

Step 1: Choose the file that you want to convert by clicking on the Add Files button on the screen.

add files

Step 2: Select the format, i.e.MP4, and click on Convert Now.

choose the format

Step3: The conversion will begin, and you need to wait until it gets over. Once done, tap the Download button.

Zamzar - Pros & Cons -


● It’s easier to understand the process involved with conversion

● Provides the option of drag-drop, URL or browse to import the file

● It offers 1200+ formats of files for conversion


● You have to sign up for getting extra benefits

● Converts only up to 50MB with the free version

● The layout of the site might confuse the users about the process

Part 3. Can iTunes play M4B

iTunes does play the M4B files. iTunes has a built-in converter that is easy-to-use and can change the file formats. iTunes has an intensive library of file formats that it can read and play easily, and fortunately, M4B is one of the same. If you wish to listen to your audiobook or podcast on iTunes, then you can definitely plan to enjoy it.


With the number of file formats available in the market, it might be confusing for you to know and understand what format should you be choosing. Don't Worry and select the MP4 format as it works on almost all platforms with ease. You can convert M4B to MP4 using iTunes and stay tuned to your audio story or podcast on any device, even when you are on the move.

Christine Smith

Christine Smith

chief Editor

Resource > Audio Solutions > How to Convert M4B to MP4 format in 2024