Are you looking for a free AVI to MP4 converter to convert AVI to MP4 video files for multiple purposes? Nowadays, MP4 is a widely used video format accepted by all media player and social media platform for private play, public sharing, and marketing promotion. Thus, seeking the best free AVI to MP4 converter is the name of the game. Read through this post to take your best pick.

Table of Contents:


PART 1: Why Do You Need an AVI to MP4 Converter?

MP4 and AVI have been, in fact, the most widely spread file extension for years. However, there are most cases when you are in need of a program that allows you to convert AVI into MP4 files. Here comes a comparison table displaying the similarities and differences between AVI and MP4.







Full Name

Audio Video Interleaved, subformat of RIFF (Resource Interchange File Format)

MPEG-4 Part 14, extended from QuickTime File Format

Supported video formats

Almost all including DVD video

MPEG-2, MPEG-4 ASP, H.263, VC-1, H.264/MPEG-4 AVC

Supported audio Formats

Almost all


Other Data Types


Subtitles, images, text


DivX & Xvid

H.265/HEVC, H.264/AVC, MPEG-4, MPEG-1, MPEG-2, Real Video, Theora, VP8, VP9, WMV/VC-1, MVC

File Size & Quality

Large, different compressors to balance file size against quality, not good for distribution

Compressed small size with degraded quality

Compatible Devices

PC, game consoles, camera brands

PC, macOS, Android, iOS, Linux, Ubuntu

Compatible Media Player

Windows-based media player

iTunes, VLC, Windows Media Player, GOM, DVDFab Player, and almost all

Supported Media Platforms


YouTube, Facebook, Instagram...

See from the table, MP4 is more widely used than AVI, especially when people are keen on uploading MP4 video files on social media sites such as Instagram, Facebook, and YouTube. Moreover, MP4 is supported by mostly every smartphone or smart device right out of the box. Under the circumstances, converting .AVI to .MP4 is imperative and convenient. To achieve this aim, it’s cost-effective to choose the right free AVI video converter, whether it be available on desktop, online browser or mobile app.

PART 2: Best 5 AVI to MP4 Converter Free for Win & Mac

For most desktop users, both Win and macOS, here comes a list of prime AVI to MP4 converter that can be used to convert AVI to MP4 video files for diverse uses including for mobile playback, sharing on social media sites or for marketing promotion. On top of the list, DVDFab Video Converter outranks the rest due to its following amazing features.

DVDFab Video Converter [Standard Version]

DVDFab Video Converter is a versatile avi to mp4 converter acting as a video converter, video compressor, and simple video editor, which can suit your personal needs.

  • Convert 720p/1080p/4K/8K/3D/H265/H264/SDR videos into videos or audios of various formats playable on multiple portable or mobile devices
  • GPU hardware acceleration for quick & batch conversion
  • Basic video editing features to enhance video quality
  • Work with AI Upscaling (Enlarger AI) to upscale video quality
  • Export video directly to mobile or upload on YouTube
  • Free trial available, clean & intuitive interface
  • Available on Windows & macOS

 i  Free Download    i  Free Download  

You can also convert the downloaded videos into other formats if you wish to share them on other devices too. This best avi to mp4 converter is not a free video converter, but it provides a 30-day free trial, during which period you can enjoy all its features without spending a penny. For buying it, you can get a discounted price if there are promotions. Just keep an eye on its official website. For the free AVI to MP4 converter, it has some limits on resolution output. Anyway, it does not hinder you converting avi to mp4 Windows 10.

How to convert avi to mp4 with DVDFab Video Converter

Meanwhile, it does offer a 100% FREE onlion video converter that allows you to convert avi to mp4 free online, without any installation.

Best Alternative: DVDFab Video Converter Pro [Ultra Version]

As a versatile AVI to MP4 Converter, Video Converter Pro is a 3-in-1 video editing toolbox which is fully dedicated to converting videos or audios to 1000+ formats and improving video quality via tons of editing features and creative effects. Want to kill two birds with one stone? This avi to mp4 converter might be your first choice.

How to Convert AVI to MP4 Free and Easily

As to how to convert .avi to .mp4, let’s check the following simple guideline.

Step 1: Free download DVDFab Video Converter Pro and select Video Converter module

 i  Free Download  

Download avi to mp4 converter free

Step 2: Load AVI video source and customize MP4 output

This AVI to MP4 converter free program enables you to choose output video and audio parameters as per your needs. If you aim to upscale video resolution, you can select Enlarger AI module, which will ai upscale video from 480p to 1080p.

Customize output video before converting avi to mp4

Besides, you can click the Video Edit button to simply edit videos via multiaspects including trimming, cropping, rotating, adding watermarks and subtitles, and adjusting brightness and contrast.

Step 3: Start to convert AVI to MP4 and apply the final result

Once done, hit the Start button to start converting .avi to .mp4. You can save the output video in the local HDD or share on your social platform such as YouTube, Facebook, and Vimeo.

Start to convert avi to mp4 free and fast

Any Video Converter Free

When it comes to the number of file formats a program can support, Any Video Converter Free clearly doesn't disappoint you. It is a free avi to MP4 converter that supports YouTube as well, meaning that if you want to download some videos from YouTube, you can directly convert them into a format suitable (say MP4) even on your mobile without worrying about its quality. As to how to change .avi to .mp4, just follow the instructions on its main interface.

AVI to MP4 converter free for video download from social networks

Quick Features:

  • Free and Quick conversion for videos
  • Download Videos from YouTube from your PC or the web
  • Rip and Extract Audio from CDs and Videos
  • Remarkable format support
  • Complementary filters and effects

More than just YouTube, you can also download videos from this avi MP4 converter. Download and convert videos from Facebook, Vimeo, and what not! Any Video Converter is available as an avi to MP4 converter Mac and Windows. And that too, absolutely free. You'll easily find support for almost every possible format you can think about, including ready-made profiles for various devices. It also has some predefined editing functions such as cropping, trimming, and rotating videos for basic cleanup tasks. If you want to get more creative, you can also experiment with video effects to get a unique look as well. So, use Any Video Converter as an avi to MP4 converter as well as a basic video editor.


When it comes to powerful avi to MP4 converter for Windows, Linux, and macOS, Handbrake is yet another free video converter that's well known to Mac users.  This useful avi to MP4 video converter allows you to convert avi file to mp4 and other  other video formats as well.

AVI to MP4 converter free for simple conversion

It is a great choice for users who like to work on multiple platforms and deal with a lot of media files.

  • Advanced control options
  • Quick Presets for Multiple Devices
  • Fast & Simple Conversions
  • Excellent format support

However, a little downside to using this avi to MP4 converter free is that interface is not so great. Though the Handshake Program is powerful but utilitarian. There are tonnes of features that allow for accurate administration of video conversion, including video cropping, and advanced filtering. Not only this, you can also adjust the frame rate, as well as use, presets if you are ramping up for quick results. Handbrake may take a while because of its interface, but the output is worth captivating.

Free HD Video Converter Factory

Next up on the list is yet another free Video conversion and Editing tool. The Free HD Video Converter Factory is one convenient free package that prides itself on being the best avi to MP4 converter free for beginners.

Convert avi to mp4 free with HD output quality

There's also a 10-second simple guide to start converting video formats from one to another. Though you might not believe its actuality, Free HD Video Converter Factory does works fast. You can instantly drag and drop a video onto the program and use the selection menu to convert. All you need to do is just select the video format (AVI, MP4, MOV) and the output location. That's it and you are done.

  • Takes only a minute to master
  • Device profiles preset
  • Fast Conversion Speed
  • Awesome Customer Support
  • Built-in Editing Options

You'll be also excited to know that the majority of its good parts do not actually lie in the conversion. There are tons of other useful features that you can use to customize the output. The avi to MP4 converter also allows cutting, cropping, and awesome special effects that are all on hand. It gives your videos the look you want, and the formats allow you to get lossless quality after conversion. Beginners can choose a profile tailored to a particular playback device, while more experts can pick from the manual selection and customize things even more.

Freemake Video Converter

And last but certainly not the least, Freemake is a fast, flexible and easy to use avi to MP4 converter. Do not even think to underestimate the power-packed performance of Freemake. This tool has built up quite a name for itself by producing strong yet easy to use tools. Not to forget, Freemake Video Converter is entirely free and sounds like an exception, continuing the company's legacy.

  • Consumer-first support
  • Support dozens of formats
  • Built-in Editing tools
  • Convert videos hosted online

Convert avi to mp4 free for YouTube videos

This free avi to MP4 video converter converts files to other formats as well. It can also be used to download and convert videos from YouTube as well.

With easy editing tools available inside the software, you can use Freemake to trim unwanted footage, add subtitles easily, and convert DVD formats as well. The Freemake Video Converter covers all your everyday needs with an excellent lossless output. Initially, some of the features are locked but they would available after 3 days as a Gift Pack. So, hold on to it.

PART 3: Web-based AVI to MP4 Converter to Convert AVI to MP4 Online

There might be occasions when you dislike desktop avi to mp4 video converter because software installation takes you time and takes up memory. Here comes an online avi to mp4 converter that enables you to convert AVI to MP4 online.


This AVI to MP4 converter online has been in wide application for years. It allows you to convert AVI to MP4 free. With simple interface, there is no learning curve for all. As an avi to mp4 converter free, you can add files from the local HD or select video URL.

Convert avi to mp4 online with free avi to mp4 converter

Note that the file size shall not exceed 50MB. If you want to convert more files, go to its pricing plan. What might disappoint you is that this online AVI to MP4 converter lacks customized output options other than video format. That being said, video frame or bit rate cannot be changed.


All in All, these were the best avi to MP4 converters that you can find online. Most of them are free but the very best, DVDFab Video Converter is the leader. Now, it has come out of the world features that anyone would crave for, but as always, good things come with a price tag. If you mean to enhance video quality via professional AI-based video enhancer, you might as well turn to DVDFab Video Enhancer which is designed to upscale low-res videos to 4K for a better playback.

In fact, you can choose to convert AVI to MP4 or to find an AVI compatible player to play it in your way. For a powerful AVI player, please check top 20 AVI players for Windows/Mac/Android/iOS.