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How to Convert MP4 to AVI on Mac/Windows

Have some MP4 videos on your Mac's hard drive and want to share them with your friends who prefer the Windows-friendly AVI format? Need to convert MP4 to AVI on Mac so as to enjoy the videos on your AVI-compatible player? Now consider it done since you've come here! In this article, I'll show you how to convert MP4 video to AVI on Mac OS X and vice versa.

To complete the conversion, you need a professional Mac video conversion app like Aimersoft Video Converter for Mac. With it, you can fast convert MP4 files to AVI on Mac (Mountain Lion and Mavericks included) while retaining the high video quality. Apart from AVI, you can also convert MP4 to MOV, WMV, FLV, 3GP and more regular formats. The equivalent converter for Windows is Aimersoft Video Converter Ultimate, which allows you to change MP4 to AVI in Windows 8/7/XP/Vista. Now just download the right version and follow the steps below to finish the conversion.

Download MP4 to AVI Converter:

Download Mac Version Download Windows Version

How to convert MP4 video to AVI effectively

Note that here the screenshots of MP4 to AVI converter for Mac are used to show you how to finish the conversion in clicks. The way to convert MP4 files to AVI in Windows (Windows 8) is almost the same. Just make sure you've downloaded the right version.

1Import MP4 videos to the program

Run the program, go to the menu bar, select "File" and then choose "Add Video files" to select the MP4 files you want to import. You can also directly drag the video files to the program for conversion. (It supports batch conversion so you can import multiple files at a time).

convert mp4 to avi mac

2Choose AVI as the output video format

Next, select the output format: from the format list at the bottom, navigate to Video to find AVI and click it to set it as the output video format. As you see, almost all regular video formats are available and you can even convert videos for playing on portable devices like iPhone, iPad, iPod, Apple TV, mobile phones, Android tablets, etc. with optimized settings.

mp4 to avi converter mac

3 Start converting the videos

When all the settings are done, now you've come to the last step: click the Convert button to start converting the added MP4 files to AVI and wait for the software to do the rest for you. The conversion time depends on your video size, computer performance, output settings, etc. Generally, it won't take too long. After the conversion, you'll get AVI videos with high quality and just enjoy the videos!

Here is the video tutorial on converting MP4 format to AVI on Mac (Mountain Lion)

Download Mac Version Download Windows Version


MP4: MP4 is the file extension for the MPEG-4 multimedia container format. It can contain different kinds of content like video, audio, graphics, etc. Now it's the most used video format and is supported by many portable media players, video sharing sites, video editing programs, etc.

AVI: AVI, short for Audio Video Interleave, is a container format developed by Microsoft. An AVI file can contain both video and audio data and it's widely in Windows-based platform. To convert AVI to MP4 on Mac, please visit: Convert AVI Video to MP4 on Mac OS X.

And here is a summary of the comparison between MP4 and AVI:

1. MP4 is developed by MPEG while AVI is developed by Microsoft.

2. MP4 files are usually compressed and have a smaller size compared with AVI files that have the same quality. That's to say, MP4 files have a better quality than AVI files at the same file size.

3. MP4 is supported by much more portable media players like iPhone, iPad, iPod, PSP, Android, etc. while AVI prefers Windows-based apps like Windows Media Player.

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I tried to convert mp4 to avi and conversion came out vertical Play. My first attempt at this. Can anybody help. what I do wrong?
Hey, only three simple steps: Load in files, choose output format, click the convert button to begin. If there's any thing I can do, let me know.
so difficult
Aimersoft Employee
Hello, Stu. There are no functional differences between the trial version and the full version. But the output audio file is limited to one minute in the trial version. Once you purchase it, you can get rid of this free trial limitation.
looks to be a good product. Will consider buying. I used the free trial to convert a mp4 to avi, however the sound did not work and the size of the avi was smaller. can there be changed easily in the setting of the free trial or do i need to buy the full?
Thanks alot, I needed this to play videos on my new smart tv. There were some bumps along the road but I finally got it all to work.
Aimersoft Employee
Hi, the use of trail version is free as well, but there will be watermark on the output video, that is the limitation of trail version.
The download is free but not the use of this program
Aimersoft Employee
 Yes, it supports many formats. Just have a try!
Can I use it to convert AVI video to MP4?
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