Top 10 Ways to Convert AVI to MP4 Mac and Windows in 2023

Part 1. Best AVI to MP4 Converter

Frankly speaking, Wondershare UniConverter (originally Wondershare Video Converter Ultimate) is the best way to convert AVI to MP4 on both Windows and Mac. The following is a detailed guide on how to convert AVI to MP4 on Mac, note that the Windows version functions almost the same.

Wondershare UniConverter

• Convert AVI to MP4, MKV, MOV, and 1000+ formats.
• Convert video/audio without quality loss.
• 90X faster conversion speed than any other converters.
• Download online videos from 10,000+ sites and platforms.
• More powerful editing features are available: Smart Trimmer, Watermark Editor, Subtitle Editor and Background Remover.
• Supported OS: Windows 10/8/7, Mac OS 10.15, 14, 10.13, and more.

Try Free Try Free

How to Convert AVI to MP4 on Mac and Windows

1

Import AVI video to Wondershare AVI to MP4 converter

Open Wondershare AVI to MP4 converter, click Add Files, and import the AVI video that you want to convert to MP4 format. You can also directly drag & drop them into the .avi to MP4 converter.

2

Convert AVI to MP4 format on Mac

Click the down arrow button beside Output Format:, then select the Video tab to choose MP4 in the left sidebar and select the video resolution from the right section.

3

Start AVI to MP4 Mac conversion

Click the Start All button when everything is set, and then the MP4 to AVI converter will initiate AVI to MP4 Mac conversion immediately.

Part 2. 5 Common AVI to MP4 Converters to Free Convert AVI to MP4 Online

2.1 Media.io

Media.io is a web-based service created for audio/video file conversion. It allows you to convert popular audio formats like M4A, FLAC, WAV, WMA, OGG, and AM4 to MP3; or convert MP3 to WAV, MP3 to WMA, and more on Windows or Mac without downloading software.

Step 1: Click + to add your AVI files.

Step 2: Select MP4 as the format to convert to.

Step 3: Click Convert to start converting your files.

Step 4: Download a converted MP4 file or save it to Dropbox.

2.2 Onlinevideoconverter

OnlineVideoConverter.com (OVC) is a free online media conversion web application that allows you to convert any video link or file to various formats without the need to install any software on your computer.

Step 1: Choose a .avi video or any other supported media file from your device or cloud storage.

Step 2: Select .mp4 as the conversion format from the dropdown menu.

Step 3: Click the Start button to start converting your file.

Step 4: When the conversion is completed, click on the download link to get your converted MP4 file.

2.3 Online-Convert

Online-Convert.com is an online converter that has all in one website. It is totally free to use for the public users, does not have a convert limitation, it allows you to add online files and can make some manual adjustment with its Settings features such as cut your video, change bitrate, frame rate, among others.

Step 1: Click on Video Converter in the main window of the online AVI to MP4 converter.

Step 2: Click on Convert to WMV from the left list and then click the Browse button to add your MOV video or add its URL file.

Step 3: Click on the Convert file button to start converting AVI to MP4 online.

2.4 FileZigZag

FileZigZag is a complete online file formats converter that supports a wide variety of different file formats, including videos, documents, images, songs. It’s effective, easy to use and totally free.

Step 1: Click the Select button to upload your AVI files.

Step 2: Set MP4 as your output format from the drop-down list.

Step 3: Enter your e-mail address to receive your converted .mp4 files.

2.5 Convert.Files

Convertfiles.com is an online tool for file conversion that enables you to convert your file from AVI to MP4 with the utmost convenience and ease. You have the option of sending it to your mail for downloading it immediately for use.

Step 1: Click Browse to upload the AVI file that you wish to convert.

Step 2: Click the drop-down icon beside Output format and select MP4 as the target file format.

Step 3: Click Convert and a link for downloading the converted file will appear in no time.

Part 3. 3 Common AVI to MP4 Converters to Free Convert AVI to MP4 Online

The AVI to MP4 converter free enables you to free convert AVI to MP4 easily. It functions almost the same as the steps to convert AVI to MP4 with Wondershare UniConverter (originally Wondershare Video Converter Ultimate). The main differences lie in the conversion speed and supported formats. You can freely download the freeware via the download button below and use it anytime.

Video Converter Free

• Free convert AVI to MP4, MOV, FLV, and 1000+ formats.
• Trim, crop, edit AVI video before MP4 conversion.
• 90X faster conversion speed than any competitors.
• Supported OS: Windows 10/8/7, Mac OS X 10.14, 10.13 – 10.6.

Try Free Try Free

How to Convert AVI to MP4 Free

1

Add AVI Video Free

Click

Add Files

button to import your target AVI videos to the free AVI to MP4 converter, or directly drag and drop them to the main interface.

2

Choose MP4 as Output Format

Hit the format icon in the upper-right corner to get the full list of output format, choose

MP4

under the

Video

tab.

3

Convert AVI to MP4 Free

Click

Convert All

in the bottom right to free convert AVI to MP4 right away.

3.2 QuickTime

QuickTime is the built-in video player of the Mac system that multitasks and performs an array of other functions as well including video conversion. While using QuickTime there is no need of downloading any software or program as it comes bundled with the system. The process of video conversion is simple and quick using this free Mac video converter.

Pros:

• Preinstalled with Mac and thus no need for any software download
• Simple interface with easy to use features
• Allows choosing for different resolutions

Cons:

• No batch processing option
• Limited codec support
• Limited features as compared to other programs

3.3 HandBrake

Handbrake is another widely used free video converter Mac that supports an array of input formats. This cross-platform program is compatible with working with Mac, Windows, and Linux systems. Using the software you can convert your videos to MP4, M4V, MPG, MKV, and other popular formats. In addition to decent quality conversions, Handbrake also supports advanced features like adding subtitles, adding audio tracks, setting and customizing frame rate, changing video codec, adjusting chapters, and others. Presets for quick conversions are also available.

Pros:

• A wide array of format support for converting almost all types of files
• Comes with advanced control features
• Presets for quick conversion

Cons:

• Utilitarian design
• Working with settings need time
• Only the first four minutes are supported during the Live preview

Part 4. Comparison Among AVI to MP4 Converters

Best AVI to MP4 Converter
Online AVI to MP4 Converter
Free AVI to MP4 Converrer

Convert home DVD

Yes, convert with watermark

Convert Video to common formats
Almost all formats, over 1000 formats
Only common formats
Almost all formats, over 1000 formats

Batch conversion of video files

Maximum upload file size
Unlimited
100MB
Unlimited

Video Conversion speed
Fastest Video Conversion in the industry
Slow
Good

Video conversion quality
Lossless quality
General
Good

Convert any 2D videos to a 3D format at ultrafast speeds

Convert HD Video including 4K /

Burn video or audio to DVD for personal

Yes, with watermark

Download YouTube Video and the videos from other 10,000 video sharing sites

Only download video from YouTube

Record Online Videos

Record 1 minute

Editing functions: Clip, Split, Crop, Merge, Rotate and More

Special Effects for video editing

Add or Remove Text/Image Watermark

Plug-in Subtitle

Transfer videos to your Apple and Android devices

Only 5 files

Streams your media files on a PC to a smart TV

Perfect DLNA support built-in

Part 5. Frequently Asked Questions for AVI Format

5.1 Why Does AVI Not Work on Mac

Generally, there’re 2 major reasons causing AVI playback issues.

1. CODEC has not been ported to Mac OS X

AVI (Audio Video Interleave) is a media container consists of both video and audio data compressed with CODECs (Compressor-Decomoressor), which are unavailable for QuickTime in Mac OS X.

2. DivX®-encoded files carry the .avi extension

QuickTime does not include native DivX support, even though QuickTime 6 and later support the ISO Standard MPEG-4 media compression format and DivX is based on the MPEG-4 standard.

5.2 How to Solve .avi File Not Playing Error

We collect 4 effective methods that help to play AVI files in QuickTime on Mac.

1. Install Perian

Perian is an excellent, free, and open source QuickTime component.

2. Install the 3ivx® D4 CODEC

Download and install the 3ivx MPEG-4 CODEC as the installation instructions require in the associated ReadMe file. This CODEC adds support for a variety of DivX and other formats which often carry the .avi extension.

3. Use VLC Media Player

The quickest and easiest way to play AVI and DivX files on Mac OS X is to download and install the free VLC Media Player for OS X, which has a wide support VLC is also often referred to by its original name, VideoLAN Client.

4. Convert AVIs to Mac-compatible Format

To thoroughly solve AVI not playing on Mac issues, you can take advantage of Wondershare UniConverter (originally Wondershare Video Converter Ultimate) to convert AVI to MOV, M4V or any other Mac supported formats

5.3 MP4 or AVI, Which is Better

Handbrake is an open source and completely free command line tool for transcoding video files from one format to another. Although the interface looks complex, it’s easy to use. Below we’ll show you how to convert MP4 to MP3 with ease.

1. What is AVI

AVI files contain both audio and video data in a file container that supports synchronous audio-with-video playback. However, AVI lacks some features that newer containers like MPEG or MP4 have cuz it was developed for Windows.

2. What is MP4

MP4, specified as MPEG-4 Part 14, also has many other extensions such as .m4a and .m4p. It has good compatibility makes it playable on near all devices like iPhone iPad Android and it is highly-compressed while reserving high quality.

3. AVI vs. MP4

AVI
MP4

Developer
Microsoft
MPEG (Motion Pictures Expert Group)

Video Formats Supported
Almost anything through VFW (Video for Windows)
MPEG-2 Part 2, MPEG-4 ASP, /MPEG-4 AVC, H.263, VC-1, Dirac, others

Audio Formats Supported
Almost anything through ACM (Audio Compression Manager)
MPEG-2/4 (HE)-AAC, MPEG-1/2 Layers I, II, III (MP3), AC-3, Apple Lossless (ALAC), ALS, SLS and others

Supported Codecs
Often DivX, Xvid
MPEG-4, /AVC, / , also MPEG-1, MPEG-2, WMV/VC-1, Real Video, Theora, VP8, VP9, MVC

Supported Devices
Microsoft devices, Game consoles, but not compatible with Apple devices
PC, Mac, all kinds of mobile devices as iPhone iPad Android, etc.

Supported Media Players
Windows Media Player or other Windows-based players
Almost all kinds of media players