You can convert avi file to mp4 as well as to variety of other formats with free online converter.

How to convert a AVI to a MP4 file? Choose the AVI file that you want to convert. Select MP4 as the the format you want to convert your AVI file to. Click 'Convert' to convert your AVI file. Zamzar Pro Tip: If you wish to open AVI files then you could use the Windows Media Player. Apeaksoft Free Video Converter is a free video converting tool which allows you to convert any video/sudio to MP4, AVI, MOV, MP3, GIF, etc conveniently and easily. Video Converter Ultimate Convert videos, audio and DVDs to 50+ popular formats with high speed, and edit videos with various editing functions. Go to File Open File, select the AVI video you want to convert, click Open. Select File Export. Select Movie to MPEG-4 from the Export drop-down list. Your Mac's QuickTime will start converting AVI file to MP4 format. You can monitor the progress of your export in the popup small window.

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Microsoft Audio/Visual Interleaved

MPEG-4 Video File

MP4 is one of the popular digital multimedia formats. The original name is MPEG-4 Part 14. It is one of the most versatile digital multimedia formats because it can play both video and audio files.

Besides, you can use MP4 file formats for many other purposes, such as streaming over the Internet and storing still images.

The characteristics of MP4 files include but are not limited to:

1. MP4 file formats are mostly preferred by users because of the versatile use that includes playing audio and video files.
2. You can use MP4 to stream or watch live events over the Internet.
3. MP4 file stores multiple data types, such as audio, video, scene descriptors, and object descriptors.

How to create and how to open an MP4 file

You can create an MP4 file by recording video with your device or by using certain software.

You can also use various converters to convert videos to MP4 file formats.

How to Open an MP4 File

Almost all the video players open an MP4 file because MP4 is a standardized digital file format.

You can open an MP4 file in several ways, such as using either the Windows Media PlayerorVLC Media Player.

Some of the others that can open the MP4 file are QuickTime (for macOS), MPlayer, VLC Media Player, and X Codec Pack.

Which other formats MP4 can be converted into and why

MP4 is widely used as a video file format because of the efficient video compression scheme that prevents data loss when converting.

Besides, you can use a lot of tools to seamlessly convert your MP4 file to another file format. Some of the popular video formats are:

1. 1. m4w
2. 2. mkw
3. 3. mov
4. 4. avi
5. 5. flv

MP4 is supported by almost any device that is able to play video. However sometimes a user might need to convert it to another format. MKV is well known for being able to store a huge amount of information like dozens of audio streams and subtitles. WMV format provides better compression than MP4 does.

FAQ

An AVI to MP4 converter is a specialized file converter that allows you to transcode AVI videos to MP4 files. It helps not only to reduce the size of the files, but also lets you enjoy your favorite movies on mobile phones.

Video conversion is never an easy task, not to mention using a free AVI to MP4 converter.

So, it makes sense that many people left messages to complain that their videos were damaged by video converters.

Therefore, we identify best 15 free AVI to MP4 converters for you, and also the simple guide of converting AVI to MP4 is attached.

Part 1. How to Convert AVI to MP4 (Recommende Way)

The above free AVI to MP4 converter can easily help you to free transfer AVI to MP4 for free. However, another way of exporting AVI to MP4 free has some limites to convert AVI to MP4 like file size, file number, etc. Here, we recommend the best way to convert AVI to MP4 on computer with AnyMP4 Video Converter Ultimate . Llet's check its functions one by one:

• 1. Lossless conversion. It is able to convert video formats without damaging quality, including the resolution from SD to HD, even 4K UHD.
• 2. Higher compatibility. This video converter supports almost all video and audio formats.
• 3. Video editor. The built-in video editor offers basic editing tools, like clip, merge, rotate, mirror, watermark, effects, 3D, etc.
• 4. Extract sound from video or DVD easily.
• 5. Rip DVD. It also has the capacity to extract video and audio from DVDs.
• 6. Add or delete subtitle, extra-audio track, etc.

How to use AnyMP4 Video Converter Ultimate

Step 1: Download and install software on your PC

Above all, just download the AnyMP4 Video Converter Ultimate from AnyMP4 website, and then you should install it on your computer.

Step 2: Run program and choose Add Files

After you finish installation, open this application. Afterwards, click 'Add Files' icon to choose the video that you intend to convert it to MP4 online. This option is the second one at the top of the interface.

Step 3: Edit the video to be perfect

Next, click the 'Edit' icon. After that you can adjust video rotate, crop, watermark, filter and effect according to your requirement. Regarding this step, you can just skip it directly if you don't need to modify or polish this video, you can skip it directly.

Step 4: Choose the video output format

Then, hit the inverted triangle in the box next to the 'Convert All to' text to choose the MP4 format.

Step 5: Start to convert video

Once you have finished all the steps above, you can click the 'Convert All' choice at the bottom of the interface.

Part 2. Best 10 Free AVI to MP4 Converter Software for Windows and Mac

1. Aiseesoft Free Video Converter

Platform: Windows, Mac

Aiseesoft Free Video Converter is another popular video converter. Apart from encoding AVI to MP4, it also lets you encode AVI format to more than 300 formats, and convert MP4 to AVI and other formats for free. It customizes the output settings like codec, bitrate, resolution (up to HD). As for the editing features, it can edits opening theme and ending theme. Last but not lease, it lets you batch convert AVI to MP4 on computer.

This free AVI to MP4 converter is easy to use. After importing one or several AVI videos and choose MP4 from the dropdown list of 'Output format' as the output format, and one-click on the Convert button will complete the job.

2. Handbrake

Platform: Windows, Mac, Linux

Handbrake is an open source AVI to MP4 converter. It converts AVI videos to MKV, M4V, MP4, AAC, FLAC, MP3, etc. Besides, it extracts MP4, MOV, FLV, WMV, MP4, etc. videos from DVDs. When converting MP4 files, it supports 4K resolution AVI to MP4 conversion. What's more, it offers extensive custom options.

How to use Handbrake to convert AVI to MP4

Step 1: Go to 'Source-> Open File' to import the AVI video into the program. Drop a folder to save the output in 'Destination' area.

Step 2: Choose MP4 on the 'Container' list and click 'Start' button.

3. Miro Video Converter

Platform: Windows, Mac, Linux

Miro Video Converter is a free AVI to MP4 converter for Mac, Windows and Linux. Let's check what is also supported apart from free converting AVI to MP4. It supports drag-and-drop command to convert AVI to MP4 for free. If you want to convert AVI to device, it also leaves you the option to convert video to various devices directly. It is easy to transfer files to MP4, WebM, OGG, MP3, etc.

How to use Miro Video Converter Mac

Step 1: Connect your phone to the Mac computer and launch the program. Drag and drop the AVI videos into it.

Step 2: Choose a target device or MP4 from 'Format' area and hit 'Convert to WebM SD' to start converting.

4. FFmpeg

Platform: Windows, Mac, Linux

FFmpeg is another open source command line AVI to MP4 converter. Apart from being the AVI to MP4 converting freeware, it also includes libavcodec, the leading open source codec library. Besides, it is fast to convert AVI to MP4 for free if you are not beginners.

How to use this free AVI to MP4 converter

Step 1: Click 'Open' button to load the AVI video and then hit 'Save As' to select a folder to save the result.

Step 2: Choose MP4 on the 'Video Codec' list and click 'Encode' button to start encoding AVI to MP4.

5. AnyMP4 Free MP4 Converter

Platform: Windows, Mac

AnyMP4 Free MP4 Converter is one of the best free AVI to MP4 converter. It converts AVI format to MP4 without quality loss. Moreover, it adjusts video effect, rotate, flip, add watermark, clip and merge, etc. Apart from AVI, it also converts MOV/MKV/AVI/WMV/FLV/VOB/SWF/M4V to MP4. While converting, it encodes multiple videos in one click. Before converting, it lets you preview video effects before converting.

How to convert AVI to MP4 for free

Step 1: Run the free AVI to MP4 converter and import several AVI videos to convert by clicking 'Add File' button.

Step 2: Choose MP4 on the 'Profile' menu and drop a destination. Finally, click 'Convert' button to encode AVI to MP4.

6. VLC

Platform: Windows, Mac, Linux, Android, iOS, Chrome OS, and more

VLC is a both a media player and a free AVI to MP4 converter. Apart from converting AVI to MP4, it also converts AVI to MP4 and other video formats, like DVD, MKV, FLV, MOV, WebM, MPEG, etc. It can help you grab online videos and download in MP4. A wide range of codecs like H.264, H.265, DivX, VP8 and more are supported by VLC. Last, it can even play and stream multimedia online and offline.

How to use VLC Media Player as a video converter

Step 1: Go to 'Media' menu and click 'Convert/Save' option to open the 'Open Media' dialog.

Step 2: Click Add button in File tab to import AVI video. Then unfold the 'downward' icon and choose 'Convert'.

Step 3: Pick up 'MP4' on the 'Profile' list and click on 'Start' button to begin converting.

7. WinX Free AVI to MP4 Converter

Platform: Windows

WinX Free AVI to MP4 Converter is a free AVI to MP4 converter tool. It can transcode AVI to MP4, MOV, MPEG, WMV, MP3, etc. Before converting from AVI, it can compress MP4. Powerful editing features like merge, crop, trim, and more are supported. Its hardware acceleration support can speed up the AVI to MP4 conversion.

When you want to convert videos, drag and drop them into the program and click on Run button. The program will complete the process.

8. Freemake Video Converter

Platform: Windows

Convert Avi To Mp4 Mac Free Online

Freemake Video Converter is a popular free video converter for PCs. It can compress the output MP4 files before converting. If you have no AVI files, it can download and convert online AVI files to MP4 directly. Besides, it can rip AVI, MP4, etc. videos from DVD and burn MP4, AVI, and more files into DVD disc. Like other AVI to MP4 converter, it can edit MP4 files before converting, like merge, clip, rotate, etc.

After upload AVI videos into the free AVI to MP4 converter, you can click on 'to MP4' option to start the conversion process.

9. Any Video Converter Free

Platform: Windows, Mac

As its name said, AVC is a free AVI to MP4 converter as well. It supports HEVC/H.265 Video Coding. Even for DVDs, it is capable of extracting MP4 videos and audio from DVD. Before converting, it lets you edit and enhance videos.

This video converter supports two-step video conversion. Import an AVI video, choose MP4 from the output format list and click on Convert Now button to finish the operation.

10. Free HD Video Converter Factory

Platform: Windows, Mac, Linux, Android, iOS, Chrome OS, and more

The free version of HD Video Converter Factory is another choice to convert HD AVI to MP4. It converts AVI videos from computer locally or URL to MP4.

After load AVI videos and choose MP4 from the output list, you can get what you want by clicking on the Run button of the free AVI to MP4 converter.

Part 2. Top 5 AVI to MP4 Converter Online and Free

11. Online Converter

Online Converter offers various file converters, including a free AVI to MP4 converter. It imports AVI files from hard disk, cloud services or websites. Besides, it converts AVI, FLV, M4V formats to MP4 online. Before converting AVI to MP4 online, it provides extensive custom options to customize the MP4 files.

When it comes to how-to, you can upload an AVI video from PC or Google Drive and click on Convert file button to complete conversion and download.

12. Online Video Converter

If you need a free AVI to MP4 converter online, Online Video Converter is one of the best choices. It transcodes AVI videos to MP4 or other formats online. For the long MP4 files, it lets you set start point and end point to cut the video as the video cutter. You can also decide the output quality.

It supports one-click conversion. So, after import an AVI file and customize output format and other options, hitting the Start button will complete the process.

13. AConvert

As a free AVI MP4 video editor and converter, AConvert can encode local or online AVI videos to MP4. Before converting AVI to MP4 free online, it lets you cut, merge, rotate or crop videos online. With customization options, it lets you create unique videos.

Once you upload an AVI on the home page and set MP4 as target formats, clicking Convert Now button will take you to the result page when it is done.

14. Files Conversion

Convert Avi To Mp4 Mac Free Online Converter

Files Conversion's video encode app is another free AVI to MP4 converter. It allows you to upload videos from computers or URL for converting to MP4. Its output option lets you encode AVI to MP4 for portable devices directly. It can also customize result quality and size.

Similar to other online video converter, all you need to do is to upload an AVI video, choose MP4 from format list and click Convert button to evoke the conversion process.

15. HD Convert

Convert Avi To Mp4 Mac Free Online Music

HD Convert works for converting HD videos online. It can encode HD videos to MP4 or other formats. It also offers various preset solutions and convert AVI to MP4 automatically.

This free AVI to MP4 converter is able to convert video online easily. Choose MP4 converter and upload an AVI video. It will do the rest work automatically.

Conclusion

In this article, we have shared top 15 free AVI to MP4 converters in detail. Some are best desktop programs; others are to online video converters. You can discover most appropriate video converter software based on our introductions. Moreover, when you need to convert videos, you can follow our guides to get what you want easily.

Part 4. FAQs of Converting AVI to MP4

1. Is AVI better than MP4?

AVI video has better quality. If you prefer better quality, you can choose AVI, but if you prefer to save space, MP4 is a good choice.

2. Can I convert AVI to MP4 with HandBrake?

Yes. Handbrake is one of the converters that you can use to turn AVI to MP4. It can convert many formats, and it's totally free and works best with Linux, Mac and Windows platforms.

3. How do I convert AVI to MP4 on Mac?

You can try AnyMP4 Free MP4 Converter to change your AVI videos to MP4 on Mac. You just need to Download the program from Mac App Store and install it on your Mac computer. When you need to convert AVI videos, launch the program. Then add the AVI files to this program and choose MP4 format as the output file. In the end, click the Convert button to start your conversion.

4. Can I extract audio from AVI videos with VLC?

VLC is a popular media player and free of charge. You can find more powerful features in it, such as convert AVI to MP3 or other audio formats, rip homemade DVD, record videos, and more.