Both MP4 and AVI are two popular video formats that can store a video file on your computer or smartphone. Normally, most operating systems support these two video formats. In rare cases, you need to convert MP4 to AVI.
For example, if your installed media player like Windows Media Player can’t play MP4, you will need to convert MP4 to AVI. Or for some other reason, you have to convert your MP4 video to AVI.
In this case, you need to use a professional MP4 to AVI converter to complete the video conversion. For different operating systems, you need to use different video converters. Besides, you can choose to use a desktop MP4 to AVI converter, or you can use an online video converter that has no operating system limitations.
How to Convert MP4 to AVI Free?
- Use MiniTool Video Downloader for Windows
- Use VLC Media Player for Mac
- Use Online-Converter
There are many free MP4 to AVI converters. Some of them are desktop video converters and some of them are online video converters. Now, we will show you some representatives. You can just select one according to your requirements.
#1: Use MiniTool Video Converter on Windows
- Download and Install MiniTool Video Converter.
- Upload the MP4 file.
- Choose the output format.
- Set save destination.
- Export and check the video.
MiniTool Video Converter is a dedicated video converter that available on Windows computers. It can help you convert your video and audio files to the formats you want to use. Here is a step-by-step guide on how to convert MP4 to AVI with MiniTool Video Converter:
Step 1: Download and Install MiniTool Video Converter.
Get the latest version of MiniTool Video Converter on your computer.
MiniTool Video ConverterClick to Download100%Clean & Safe
Step 2: Upload the MP4 file.
Open this free video converter and click Add Files or Add or drag files here to start conversion to upload MP4 video.

Step 3: Choose the output format.
Click the settings icon in the conversion task. Then, click the Video tab, select AVI, and choose a video quality.

Step 4: Set the save destination.
Expand the Output option and set the save folder.

Step 5: Export and check the video.
Click Convert to start conversion.

Then, click the play icon to view the AVI video, or click the folder icon to locate the save location.

After reading this guide, you can find that it is not a difficult job to convert a video from MP4 to AVI using MiniTool Video Converter. It supports multiple formats, including MP4, MOV, MKV, AVI, WMV, M4V, and more. It can also convert the video and audio files to the formats that are supported by different devices, including Apple, Huawei, Samsung, and Android.
If you want to convert other video formats like TS to MP4 or MXF to MP4, you can also try this software.
Of course, MiniTool Video Converter is not the only video converter for MP4 to AVI. There are some other available tools. You can also try them to perform a video conversion from MP4 to AVI:
- VLC media player for Windows
- Wondershare UniConverter for Windows
- Freemake Video Converter for Windows
- Any Video Converter for Windows
- HD Video Converter Factory for Windows
- And more…
#2: Use VLC Media Player on Mac
- Open VLC on the Mac.
- Go to File > Convert / Stream.
- Import the source video.
- Choose AVI as the output format.
- Select a save location and start the conversion.
- Check the converted AVI video.
If you want to convert a video from AVI to MP4 on a Mac computer, you can try VLC media player. Here is how to convert MP4 to AVI using VLC on your Mac computer.
Step 1: Open VLC on the Mac.
Open VLC on your Mac computer.
Step 2: Go to File > Convert / Stream.
Go to File > Convert / Stream….

Step 3: Import the source video.
Click Open media to select the source video for your Mac. You can also drop the video to this software.
Step 4: Choose AVI as the output format.
Select the AVI format from the Choose Profile You can also click Customise to customize the video formats according to your requirements.
Step 5: Select a save location and start the conversion.
Click Save as File and follow the on-screen guide to start the video conversion process.

Step 6: Check the converted AVI video.
When the video conversion process ends, you can use the converted video directly.
Of course, you can use other video converters to convert a video from MP4 to AVI on your Mac. We will show you some reliable representatives:
- iSkysoft Video Converter Ultimate for Mac
- Wondershare UniConverter for Mac
- MacX Video Converter Pro for Mac
- Movavi Video Converter for Mac
- Stellar Converter for Audio Video for Mac
- And more…
#3: Use an Online Video Converter: Online-Converter
- Open Online-Convert in a web browser.
- Select the Convert to AVI tool.
- Upload the source video file.
- Adjust output settings if needed.
- Start the AVI conversion.
- Download the converted AVI video.
Online-Converter is a very famous online video converter that supports many formats like AVI, FLV, MKV, AAC, AIFF, FLAC, and more.
It is also a good idea to convert a video from MP4 to AVI using an online video converter. You don’t even need to install the tool on your PC. The only disadvantage is that you need to make sure that your network connection works well during the video conversion process.
Here is how to use this online video converter to convert a video from MP4 to AVI.
Step 1: Open Online-Convert in a web browser.
Go to https://www.online-convert.com.
Step 2: Select the Convert to AVI tool.
Click the Go button in the Video converter section.

Click Convert To AVI from the left list.
Step 3: Upload the source video file.
Click the Choose Files button to select the source video from your computer.

Step 4: Adjust output settings if needed.
This tool will begin to upload the source video. If you have some extra requirements, you can scroll down to modify the video settings for the output video.
Step 5: Start the AVI conversion.
Click the Start Conversion button to start the downloading process.
Step 6: Download the converted AVI video.
When the video conversion process ends, this tool can automatically start the video downloading process within a few seconds. If the downloading process doesn’t start automatically, you can manually click the Download button to start downloading.
Here, you can see that you are also allowed to upload the video to Cloud or download the file as ZIP. You can just select the function you want to use.

8. You can see the download process at the bottom of the web browser. When the process ends, you can click the video there to open it directly. You can also click the up arrow and select Show in folder to access the Downloads. If you have missed this operation, you can find the Downloads folder using the methods mentioned in this post: How to Open My Downloads on Windows? [A 2020 Guide].
Some other good online video converters can also be used to convert videos from MP4 to AVI. The following online tools are worth trying:
- CloudConvert
- ZAMZAR Online file conversion
- ConvertFiles
- Convertio
- FreeFileConvert
- And more….
Bottom Line
This article introduces 3 free MP4 to AVI converters. MiniTool Video Converter, VLC Media Player, and Online-Converter offer reliable solutions for Windows, Mac, and web users. Choose the tool that best fits your workflow!
If you have any related issues, send an email to support@minitool.com. MiniTool team will reply to you as soon as possible.
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