M4A is one of the proprietary audio formats within the Apple ecosystem. However, it may not open or be recognized on some Windows systems, smart TVs, in-car systems, and older Android devices. In such cases, it can be converted to the more universal MP4.
Part 1. How to Convert M4A to MP4
- MiniTool Video Converter
- OnlineConvertFree
1. MiniTool Video Converter
If you want to convert M4A to MP4 offline, then it is recommended to use MiniTool Video Converter, which is a professional video-to-audio converter. Follow the steps to convert M4A to MP4.
Fast Track:
- Install MiniTool Video Converter
- Add M4A audio
- Configure MP4 as the converted format
- Start converting
- View the converted video
Step 1: Download and Install MiniTool Video Converter
Download and install MiniTool Video Converter.
MiniTool Video ConverterClick to Download100%Clean & Safe
Step 2: Upload the Target Audio File
Run MiniTool Video Converter. In the default Convert Video tab, click on the Add Files option to import the M4A audio.

Step 3: Configure MP4 as the Output Format
The imported M4A file will be generated as a conversion task. There, click on the output settings icon to open the format settings window. Next, switch to the Video tab and choose MP4. Then, choose a proper resolution, such as 4K Video.

Step 4: Begin the Conversion
Before the conversion, expand the Output option to pick a saving path for the converted video. Then, click on the Convert button to begin the conversion process.

Step 5: Check and Locate the Converted Video
Once the conversion ends, the converted video will be taken to the Completed tab. Here, click on the Play icon to check it. Or click on the Folder icon to locate the converted video on the PC.

MiniTool Video Converter can quickly and easily convert M4A to MP4. It has an intuitive interface and is easy to use.
Main Features
- It supports more than 1000 output formats.
- It supports you in performing batch video conversion at once.
- It is only suitable for the Windows platform.
- It allows customizing resolution, frame rate, bitrate, and more.
2. OnlineConvertFree
OnlineConverterFree.com is a web-based free converter that allows you to convert M4A to MP4 online. It also allows you to convert 50 different formats to MP4, such as WebM to MP4. The following is how to convert M4A to MP4 using OnlineConvertFree.
Step 1: Navigate to the M4A to MP4 Conversion Page
Visit: https://onlineconvertfree.com/convert-format/m4a-to-mp4/ to open the M4A to MP4 conversion page.
Step 2: Upload the M4A Audio
Click on the CHOOSE FILE option to upload the M4A file.

Step 3: Start the Conversion
After importing the M4A audio, click on the Convert button to start the conversion.

Step 4: Download the Converted Video
Once the conversion finishes, this online converter will go to the download page. Here, click on the Download button to save the converted video.
Using OnlineConvertFree to convert M4A to MP4 doesn’t require downloading or installing any software. It is very easy to use this website to perform the conversion, as it offers you a simple and intuitive interface to quickly find the file type you want to convert and then finish the conversion.
Main Features
- It allows you to convert documents, images, audio, books, archives, and video.
- It’s 100% free.
- No download and registration required.
- It allows you to upload multiple files at the same time.
Part 2. M4A VS MP4
M4A and MP4 are usually confused, so what’s the difference between M4A and MP4? The following part has shown you some differences between them.
| M4A | MP4 | |
| Definition | The pure audio file format in Apple systems The default format for iTunes music. | Universal multimedia container format |
| File Size | High compression efficiency with small file size | High compression efficiency with small video size |
| Quality | Better sound quality than MP3 Supports lossless encoding No DRM copyright restrictions | Restores video quality to the original as possible |
| Compatibility | Compatible with the Apple ecosystem Limited support for some Windows/Android/automotive devices | Compatible with almost all platforms, devices, and playback/editing software. |
| Developer | Apple | MPEG |
Final Words
If you want to convert M4A to MP4, then you can try to use the M4A to MP4 converters mentioned above to do that. All of them are free to use. And if you don’t want to download and install any software, you can try to convert M4A to MP4 online.
If you have found any other good M4A to MP4 converter or have any questions about the MiniTool Video Converter, contact the MiniTool official via [email protected] for help.
M4A to MP4 FAQ
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