This article recommends 2 quick methods to convert YouTube to M4B, including using an offline YT downloader and online tools. The general steps involve inputting the YouTube URL, selecting the output format, saving the Y2B videos, and converting them to M4B.
The M4B file format is a common type of audio format. It is an extension for MPEG-4 files and is mainly used for audiobooks. When I download audiobooks from iTunes or Audible, they are usually saved in M4B format. Recently, I wanted to extract some audio from YouTube and use it as audiobooks. Hence, I really wanted to know how to convert YouTube to M4B.
Based on reading lots of articles and viewing various video tutorials, I have grasped how to accomplish the conversion. Next, I will share the methods with you.
How to Convert YouTube to M4B Offline
- Input YouTube URL.
- Select the output format.
- Save the YT videos.
- Convert the videos to M4B.
Step 1. How to Save the YT Video
MiniTool Video Converter can save YT videos, music, playlists, and Short videos. It can help you get YT videos in WAV, MP3, MP4, and WebM formats. If you need to download several videos, MiniTool Video Converter also supports batch downloads of up to 10 watermark-free videos at the same time. You can also choose whether to download subtitles for YTB videos if the video contains subtitles.
1. Download and Install MiniTool Video Converter
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Download, install, and run MiniTool Video Converter.
2. Analyze the YouTube Link
Go to YouTube and find the YouTube video you want to convert. Then, copy its URL and move to the Download Video section of MiniTool Video Converter. Next, click the upper-left Paste URL option. Then, paste the YouTube URL and click the Download option to start the link analysis process.

3. Choose an Output Format and Begin Download
When the link analysis finishes, select a desired output format. Then, click the Download option to start the download process.

4. Check the Output File
When the download process finishes, the software will automatically switch to the Completed section. To view the output file, click on the Play icon. If there is a need to locate the output video, click on the Folder icon.

Now, it’s time to convert the YouTube videos to the M4B format.
Step 2. How to Convert YT Video to M4B
MiniTool Video Converter is also a top-grade M4B converter, which enables you to convert up to 5 YouTube videos to the M4B format at the same time. It is completely watermark-free and has an intuitive interface.
1. Import the YouTube Video
Under the Completed section of Download Video module, click on the More icon and choose the Convert Video option to import the Y2B video.

2. Set M4B as the Output Format
Click on the Quick Settings icon to open the output format window. There, click on Audio and select M4B. Next, choose the audio quality you want.

3. Select an Output Folder and Begin Conversion
Expand the bottom Output option to choose a saving path for the converted file. Then, select the Convert option to begin the conversion task.

4. Check the Output Audio
When the conversion process finishes, this tool will automatically switch to the Completed section. There, click the Play icon to listen to the M4B file. To locate the output file, click on the Folder icon.

In one word, MiniTool Video Converter is a robust YouTube to M4B converter.
How to Convert YouTube to M4B Online
Some online websites also support downloading YouTube videos or converting files. Here are 2 online tools you can use to download YouTube videos and convert them to M4B.
Part 1. Download YouTube Videos with Online Video Downloader
Online Video Downloader is a full-featured online video downloader. It supports downloading all videos from YouTube, Instagram, Facebook, Twitter, TikTok, and Vimeo. Just paste the video link into the address bar and you can easily download it with one click.
Follow these steps to download YouTube videos:
Step 1. Access the YouTube website and copy the link of a video you want to download.
Step 2. Navigate to Online Video Downloader and paste the video link in the box.

Step 3. Choose a format and click the Download button.

You can also download the thumbnail of the video using Online Video Downloader. Just select the Thumbnail tab and choose the resolution you want to download.

Part 2. Convert YouTube Videos to M4B with Converter365
Converter365 is an online audio and video converter. Use this easy-to-use online tool to convert YouTube to M4B.
Step 1. Navigate to the website of Converter365 and click Add Files.

Step 2. Expand the Convert to option and select M4B. Then click Start conversion.

Step 3. After the video conversion is completed, it will be saved to your computer.
How to Play M4B on PC
If the M4B file you have downloaded is not DRM-protected, you can use VLC to play the M4B file. The steps are as follows:
Step 1. Install the VLC media player on your computer and launch it.
Step 2. Click on the Media option and then click on the Open File option in the drop-down menu. Select the audiobook M4B file you need to play and open it.

Step 3. The M4B file will start playing on the VLC media player.
Conclusion
This post gives you 2 quick methods to convert YouTube to M4B. Just select one you prefer. If you have any problems when using MiniTool Video Converter, just send an email to support@minitool.com for further assistance.