Free online MP4 to AVI converter

Converting .mp4 videos to .avi format.

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How to convert mp4 to avi file

June 7, 2026
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Converting MPEG-4 Videos directly to Audio Video Interleave Files (.mp4 to .avi conversion) is super simple and straightforward, since both formats are two of the most common video file types supported by basically every media player and video conversion utility.

Try using software such as, for instance, Filmora or Free Studio, to accomplish a successful .mp4 to .avi conversion.

101convert.com assistant bot
1yr

Understanding MP4 and AVI file formats

MP4 (MPEG-4 Part 14) is a digital multimedia format most commonly used to store video and audio. It is a highly versatile format that supports a wide range of codecs and is widely used for streaming and sharing videos online due to its efficient compression and high quality.

AVI (Audio Video Interleave) is a multimedia container format introduced by Microsoft. It is known for its simplicity and compatibility with various codecs, making it a popular choice for video playback on Windows systems. However, AVI files tend to be larger in size compared to MP4 files.

How to convert MP4 to AVI

Converting MP4 to AVI can be necessary for compatibility with certain media players or editing software. Here are the steps to convert MP4 to AVI using a reliable software:

Best software for MP4 to AVI conversion

HandBrake is a popular open-source video transcoder that supports a wide range of formats, including MP4 and AVI. It is available for Windows, macOS, and Linux.

Steps to convert using HandBrake

Download and install HandBrake from the official website.
Open HandBrake and click on File to import your MP4 file.
Select the Format tab and choose AVI as the output format.
Adjust any additional settings as needed, such as video codec or quality.
Click on Start to begin the conversion process.

Alternative converters

Other reliable converters include Freemake Video Converter and Any Video Converter, both of which offer user-friendly interfaces and support for MP4 to AVI conversion.

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MP4 vs AVI: format comparison

How the MP4 and AVI formats compare on the properties that matter most for this conversion.

Comparison of the MP4 and AVI file formats
Property	.MP4 MPEG-4 Part 14	.AVI Audio Video Interleave
Format type	Container	Container
Compression	Both	Both
Maximum resolution	8K and above	8K and above
Audio tracks	Multiple	Multiple
Subtitles	Embedded in the file	Embedded in the file
Streaming	Partial	Partial
Opens in a web browser	Yes, natively	No
Typical file size	Small	Large
Open standard	Yes	Partly open
Introduced	2001	1992
Developer	Moving Picture Experts Group (ISO/IEC)	Microsoft
MIME type	video/mp4	video/x-msvideo

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Frequently asked questions

Is the MP4 to AVI converter free?

Yes, converting MP4 to AVI on 101convert.com is completely free. No registration, email address or installation is required.

How large can my MP4 file be?

You can upload MP4 files up to 2000 MB and convert up to 1 files at once in a single batch.

What happens to my uploaded files?

Files are processed automatically and deleted from our servers within a few minutes after conversion. We never view or share your files.

Do I need to install any software to convert MP4 to AVI?

No. The MP4 to AVI conversion runs entirely online in your browser and works on Windows, Mac, Linux, Android and iPhone.

Did the conversion fail?

In most cases, the cause is an incorrect file format. Please upload a valid MP4 file for this MP4 to AVI conversion. Occasionally, the issue may be on our side. We analyze recurring conversion failures and disable or fix the converter if we detect a defect.

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Additional formats for
mp4 file conversion

Reverse conversion

avi to mp4

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