How to Free Convert AVI to MP4 Mac using QuickTime. Run and open QuickTime player app on your Mac system. Add the AVI file to the app interface. At Export As tab, choose file name and format desired for the output file. Click on the Export button to change AVI to MP4 Mac.

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Many times, we wish to convert AVI to MP4 video files to make the source video easier accessible, and sharable. AVI is one of the commonly see multiple media file formats on Android operating systems, however, it often meets playback error when being played on iOS and macOS devices. Social media platforms like Twitter and video sharing platforms like TikTok don't support the uploading of AVI video files at all. In addition, AVI has a large size which makes it is not as web-friendly as MP4. However, how to convert AVI to MP4? Here in this post, we are going to show you how to convert AVI to MP4 using 12 different online and offline AVI to MP4 converters.

Best AVI to MP4 Converter

1. Any Video Converter Free Mac is the best free video converter to convert any video to MP4, AVI, WMV, MP3, and edit video on macOS for free.
2. Change mp4 to avi on Windows, Mac, Iphone or Android in a couple of clicks. Select files for conversion or drag and drop them to the upload area. Your files are securely protected and available only to you. All files are automatically deleted from our servers after 1 hour.

VideoProc Converter is the best AVI to MP4 converter that you can rely on to convert AVI to MP4 offline ( Windows and Mac). It doesn't come with watermarks or size limits, so you can change AVI to MP4 files over 2GBs without hassles. Even better, it allows you to remux AVI to MP4, namely you're able to change AVI to MP4 without quality loss. Now, let's take a look at some of its highlight features.

• Convert avi. to or from 4K MP4, MOV, FLV, MKV, and more formats.
• Level-3 hardware acceleration technology: process videos at speed 47x faster than real-time play
• Built-in video editing toolkits: cut, trim, split, merge, crop, rotate, add subtitle, watermark…
• System requirement: can run fast on a slow computer as it won't take up much CPU resources

How to Convert AVI to MP4 on Windows and Mac

Step 1. Load AVI Video File

Download and install VideoProc Converter on Windows or Mac. Launch it up. Click Video > +Video to import one or batch of AVI videos. Alternatively, you can directly drag and drop those AVI videos to VideoProc Converter

Step 2. Set MP4 as the Output Format

Click on MP4 on the section of Target Formats. You can click the blue gear icon above MP4 to open up the Format panel. Herein, you can drag the quality slider to fast enhance the video quality or shrink the video size and configure the video encoding settings to adjust the video codec, and bitrate, etc.

Step 3. Start to Convert AVI to MP4

Click Run, VideoProc Converter will start the conversion. It takes only minutes to convert AVI to MP4 video files over 2GBs. The whole process can be very fast. The output folder will pop-up once it finished the conversion.

5 Online AVI to MP4 Converters

If you are an occasional user who knows little IT knowledge or simply doesn't like to install any third-party software on the computer, you may give online AVI to MP4 converters a try. But one thing you should always bear in mind is that there are always limitations in speed and size. Even you are using the most generous online AVI to MP4 converter, it's not possible to convert files over 2GBs. For the personal security issue that you may concern most, there isn't yet a guarantee. Anyway, here we detail 5 of the top-rated online AVI to MP4 converters in case you need it.

1. Zamzar

Zamzar is a famous online AVI to MP4 converter that supports not only the conversion between AVI and MP4 but also the transcode of audio, image, word, pdf, excels, etc. We can use the free service without leaving any personal information like phone numbers and emails. However, there is a 150MB file size limit for a free account, making it impossible to convert larger AVI videos. In addition, it doesn't support advanced codecs like H.265/HEVC, VP8, and VP9, and not allows you to have advanced settings on the codec.

How to Convert AVI to MP4 Online with Zamzar

Step 1. Open Zamzar on the web. Choose Add File. Select the original AVI file for importing to the AVI to MP4 converter.

Step 2. Select MP4 as the output video format.

Step 3. Choose Convert Now to start to convert AVI to MP4 online.

2. 123Apps

123Apps is one of the most powerful online AVI to MP4 converters. It allows you to convert more than 300 video formats including AVI, MOV, FLV, and MP4 without login or signup. It is capable of converting video from or to MP4 in HEVC codec, and the size limit is 2GBs. The interface is very gritty, yet you can easily find the options to change resolutions and video/audio codecs. A little pity thing is that you won't know the exact bitrate and frame rate information of the video file.

How to Convert AVI to MP4 Online with 123Apps

Step 1. Open 123Apps on the browser. Go to the top menu to locate converters. Click on this and choose video converter.

Step 2. Hit Open File to select the original AVI video that you'd like to convert to MP4.

Step 3. Under the Video Tab, choose MP4. If necessary, you can choose Resolution to save the MP4 video converted from the AVI video with a smaller or larger resolution.

Step 4. Once you are satisfied with all settings, press Convert to start to convert AVI to MP4 online with 123Apps.

3. CloudConvert

CloudConvert is another robust online AVI to MP4 converter which is competent to convert basically all types of files and formats. There are more than 140 file types it can transcode from and to, including video, audio, document, ebook, archive, image formats, etc. To bring a more efficient process, you can put customized preset, upload the AVI file you want to convert from Google Drive, OneDrive, Dropbox, or URL link, and then start the conversion. CloudConvert is expensive for people who need to convert many files, but it is already more generous than most of the other AVI to MP4 converters. It allows you to free convert 1GB of AVI video (within 10 minutes) to MP4.

How to Convert AVI to MP4 Online with CloudConvert

Step 1. Open on the home page of CloudConvert AVI to MP4 converter on your browser.

Step 2. Press Select File to choose the source AVI file that you wish to change to MP4 for importing the application.

Step 3. Press the toolkit button next to MP4 to access the Options window. Herein, you can change video resolution, video frame rate, aspect ratio, and other video and audio properties.

Step 4. Once you are satisfied with the settings, press Okay. Hit Convert to start to change AVI to MP4 online with Cloudconvert.

4. ConvertFiles

ConvertFiles is an easy-to-use online AVI to MP4 converter, with which you can fast convert AVI to MP4 in H.265 or MPEG-4 formats. This can help you save a lot of hard disk space. Besides, it has good performance in the transcoding of images, drawings, documents, archive files, and more. To speak of the downsides, there is no access to change the resolutions, bitrate, aspect ratio rate…and it can't convert video files over 250MB.

How to Convert AVI to MP4 Online with ConvertFiles

Step 1. Launch up this easy AVI to MP4 converter by visiting its home page.

Step 2. Click on Browse and then select the target AVI file on your local drive for uploading.

Step 3. Press the unfold button of Output format. Scroll down your mouse to find MPEG-4 Video File (.mp4) under Video and you should click on this.

Step 4. Press Convert to start to convert AVI to MP4 online by using ConvertFiles. Adobe illustrator patch 2021.

5. FreeFileConvert

FreeFileConvert is a useful online AVI to MP4 converter that is widely used for converting small AVI clips to MP4 videos. It allows you to put 5 files per time with a total size no larger than 300MB. The interface is filled with ads but is straightforward enough for beginner users to use. Sadly, it doesn't allow you to apply advanced settings for the output MP4 properties, and the support of advanced codecs like H.265/HEVC, VP8, and VP9 are absent.

How to Convert AVI to MP4 Online with FreeFileConvert

Step 1. Visite the FreeFileConvert AVI to MP4 official site on your browser.

Step 2. Press Choose File to import the original AVI file that you'd like to convert to MP4 to the tool.

Step 3. Press the unfold button of Output format, scroll down your mouse to find MP4. Choose it.

Step 4. Choose Convert to start to convert AVI to MP4 with FreeFileConvert.

Comparison of 5 Online AVI to MP4 Converters

6 Free AVI to MP4 Converters

There are lots of free AVI to MP4 converters out there that purport to convert 'all to any', but many of them measurably failed to deliver. Don't want to try your luck to install them one by one? There we pick up 6 of the best free video converter for you to fast convert AVI to MP4. Use the links below to navigate through the 6 free AVI to MP4 converters.

1. Freemake Video Converter

Freemake is an easy to use video converter on Windows that allows users to transcode AVI to MP4 and also many other formats. It has a very intuitive interface that won't take you too much learning curve to use. It offers you many prebuilt so that you can quickly apply those settings on the AVI file for getting the best viewing experience on iPhone, iPad, TV and other devices without knowing the complex terminologies.

How to Convert AVI to MP4 with Freemake Video Converter

Step 1. Click the Freemake Video Converter icon to launch it. This may take some seconds. Then click +Video to import one or many AVI clips that we need to convert to MP4. We can also drag and drop those files.

Step 2. Click Convert > to MP4 to enter the MP4 output parameter setting panel. You can choose the preset quality or create customize settings.

Step 3. Click Convert when everything is set properly. Freemake will inform you the Freemake logo will be added to your video. You can click continue with logo to get the output with a watermark. Or you can select continue without a watermark to pay for removing brandings.

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Do remember to cancel the subscription before the trial period, or you will get charged $29.99.

2. WinX HD Video Converter Deluxe

WinX HD Video Converter Deluxe comes with both Mac and Windows Version. It enables us to convert large UHD 4K AVI MP4 in just minutes without taking too much CPU resource or causing a visible loss in quality. Better yet, this handy AVI to MP4 converter also offers us a wide range presets for TV, PC, social media, iPhones and more. The generated file can be videos in popular formats including MKV, MPEG, MOV or audio clips in MP3, M4R, AAC, etc.

How to Convert AVI to MP4 with WinX HD Video Converter Deluxe

Step 1. Open WinX HD Video Converter Deluxe, and then click Video > +Video to choose AVI videos that you want to transcode to MP4.

Step 2. Click MP4 Video on the pop-up output file setting panel. You can move the cursor right or left to get higher output quality at a slower speed, or vice versa. For advanced users, you can click the gray gear icon to enter the output parameter setting panel. There you can have your settings on bitrate, aspect ratio, frame rate, audio channels, sample rate and more.

Step 3. Click Run to start the conversion from AVI to MP4.

3. FFmpeg

I am yet to see beginners with requirements beyond what this open-source tool offers. It can decode, encode, transcode, mux, remux and do just about anything created by humans or machines. FFMPEG is also a cross-platform converter that can run well on Mac, Windows, Linux, and other platforms.

How to Convert AVI to MP4 with FFmpeg

Step 1. Download FFmpeg Windows's package on your PC, and extract the ffmpeg.exe from the 7z file with 7zip.

Step 2. Create a new folder under the system directory, and name it as FFmpeg. Paste all the unzipping files to this newly created folder. Open Command Prompt and install FFmpeg.

Step 3. Copy the location path of the AVI video. Enter a space, tap in cd, press space, and paste the path there. Press Enter.

Step 4. Enter ffmpeg -hide_banner -i 'my_movie.avi' 'h264 1080p my_movie.mp4' and then press Enter.

Warm Note:

• my_movie stands for the name of this video.
• This given codec is for converting the source AVI file to 1080P H.264 MP4 video clip.
• Do not miss any space.

4. VLC

VLC is widely known as an open-source cross-platform multimedia player. Many of us have it installed on our Windows or Mac for playing DVDs, VCDs, MP4 recordings, media streaming, and many other types of multimedia files. But few of us know that it can be used to convert AVI to MP4.

How to Convert AVI to MP4 with VLC

Step 1. Open VLC Media Player, and click Media > Convert/Save. Click Add on the pop-up Open Media panel to add the AVI videos that need to change to MP4 from the local drive.

Step 2. Click Convert/Save to enter the output file setting panel. On the section of Settings: make sure the round button ahead of Convert is checked. Click Deinterlace if necessary. Click the tool icon to get the list of the output formats. Here you are advised to choose Video-H.264 + MP3 (MP4).

Step 3. Click Start. VCL is now converting AVI to MP4

5. Avidemux

Avidemux is a free and very basic video converter and editor which goes compatible with Mac, Windows, and Linux. You can add filters to do some little video tweaking like trimming, cropping, cutting, merging, etc. As for video conversion, it has a wide range of input options, for instance, AVI, H.264, HEVE, MPEG-2/3/4. It partially goes compatible with VP8, VP9, AVI, and other modern codecs. Therefore, you can use it to convert most videos to MP4, MKV, MOV, and many other prevalent formats.

How to Convert AVI to MP4 with Avidemux

Step 1. Open Avidemux, click File > Open and then add those AVI files that need to be converted. Alternatively, you can drag & drop AVI videos to the main interface of Avidemux.

Step 2. Set MP4 as the output formats. There are 3 sections:

• Video Output: click the desired codec (H.264 is the best recommended) from the drop-down menu.
• Audio Output: you can hit Copy to keep it the same with the source codec, or select a new one.
• Output Format: MP4 Muxer.

Step 3. Click the purple button to let Avidemux start to convert AVI to MP4.

6. HandBrake

Handbrake, like other FFmpeg-based open-source video converters, is an pro-level AVI to MP4 converter that is favored by many advanced users. Aside from converting AVI to MP4, it also enables you to convert DVD, Blu-Ray without the copy protection, and multimedia files to MP4 and MKV. There are lots of options available on the output setting sections which enables us to have full control over the video and audio encoding parameters. Better yet, it also supports some quick-on-the-go edits.

How to Convert AVI to MP4 with HandBrake

Step 1. Open Handbrake. Drag & drop AVI video(s) to Handbrake, or you can click File to import the source AVI video from the local to load on.

Step 2. Click Preset, and choose one from the drop-down list that suites you best. On the panel of Summary, set MP4 for Format. You can check the audio and video information on the information that displays aside of Tracks.

Step 3. Click the green button – Start Encode to ask Handbrake start converting AVI to MP4

Comparison of Top Offline Free AVI to MP4 Converters

Everything You Should Know About AVI and MP4

1. What Is MP4

MP4 refers to MPEG-4 Part 14, also known as MPEG-4 AVC. This multimedia container format can storage videos, audios, images, metadata, and many other pieces of information. Many people consider it as the best format for creating content for both videos and televisions. .mp4 is the only official extension name of MPEG-4 part 14, but there are still many MP4 videos come with extension names including .m4v, .m4p, .m4b and etc. The codecs hold by MP4 container can be anything based on or following the MPEG standard including H.263, H.264, H.265, XviD, etc.

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Pros:

• As one format published for streaming and sharing, MP4 is usually smaller than AVI, MOV and other formats of videos under the same quality.
• Supported by most media players

Cons:

• Editors like Adobe Premiere Pro and Davinci Resolve doesn't like MP4.
• Easy to get A/V out of sync problems.

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2. What Is AVI

AVI or Advanced Video Interlace is a multimedia container format published in 1992 by Microsoft for holding audio and video data. It used to be the default format for some of the most popular digital camera brands like Canon and Nikon. AVI enables the synchronous playback of audio and video as it holds both in the same structure. There are lots of audio and video codecs you can through to AVI video container. That's one of the biggest pros of AVI. However, sometimes the blessing can be a curse. Your media player has to be installed the same codec with that one used to compress the AVI file, or it would fail to read and play the media content properly.

Pros:

• Go compatible with lots of codecs

Cons:

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• Large file size.
• Many devices can't read AVI files correctly.

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3. AVI VS MP4

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Check the below comparison table to figure out the differences and similarities of AVI and MP4 format.

4. Is AVI File Always Larger Than MP4

In most of cases, Yes. However, AVI and MP4 are just 2 containers to hold various kinds of edia information. Sometimes, these two containers may encapsulate the same video and audio, for example:

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• MP4 (.mp4) = MPEG-4 (video)+ AAC (audio)
• MP4 (.mp4) = H.265 (video)+ AC3 (audio)
• AVI (.avi) = DivX (video) + MP3 (audio)
• AVI (.avi) = H.265 (video) + AC3 (audio)

Thus, we should also take video and audio codecs into consideration when comparing the size or quality of AVI and MP4 files.