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How to Convert AVI to MP4
[Free. No Quality Loss]

✔ FREE & no catch. True freeware to convert AVI to MP4 with ease.
✔ No HD quality loss. "Same as source" settings to save the original quality.
✔ Quick ready presets: for mobiles, gadgets of all sorts, TV, PC, and players.
✔ Instant conversion with the best hardware acceleration technologies!
⭐ Best Free Software 2020 by CNET & TechRadar.
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How to convert AVI to MP4 free & easily:
1. Download free AVI to MP4 Converter
2. Add AVI video files to convert to MP4
3. Click "to MP4" file format
4. Set final MP4 file settings
5. Convert AVI to MP4 format free
or Watch video guide Hide video guide

Learn how to convert AVI to MP4 free:

1

Download AVI to MP4 Converter for Windows

Freemake is a popular FREE solution to convert AVI to MP4 in a couple of clicks. Unlike online converters & paid tools, Freemake AVI to MP4 Converter software will do the job for you in the fastest way and with no quality loss.

Download the freeware from the official website (Free download orange button above). Please don’t download Freemake software from any other online platforms. Only the official setup file will guarantee that the freeware is safe and won’t harm your computer.

Free Freemake AVI to MP4 Converter can be installed on Windows-based computers except for the tablets. The supported system versions are Windows Vista, Windows 7, Windows 8, and Windows 10.

By default, you get the online installation file which saves your time by loading all the necessary components on the go. If you need to install the program without being online, please ask the offline installer from our support team.

To learn more about the other features of our video converter, as well as the suppoted video formats, please visit the official homepage of the software.
2

Add AVI video files

No quality loss! Add an HD AVI video & get the same HD file in MP4 format.

Run free AVI to MP4 Converter and add your AVI videos for file conversion. There are three ways to do it. You can click File –> Add video and select the videos from a folder on your PC, USB stick or cloud drive. The 2nd way is to click the "+Video" blue button. And finally, if you have multiple AVI files for MP4 conversion, you can simply drag-n-drop them to the Freemake video software in batch.

You can convert AVI file of any size: large (over 100Mb), medium, or small.

If you plan to join the files during the conversion, add them in the order you want them to be in the final MP4 video.

Besides AVI, the converter accepts 500+ popular video and audio formats: WKV, WMV, MP3, AAC, M4A, MOV, FLV, and others.
avi to mp4 free program (thumbnail) сlick to enlarge
3

Click “to MP4” format

Choose "to MP4" at the bottom of Free AVI to MP4 Converter. The format is ideal for mobile devices & streaming websites.

Freemake AVI to MP4 program allows users to add to "Favorites" the supported extensions that they use regularly. If MP4 is your everyday choice for the output multimedia container, click the star sign next to the "to MP4" button to mark it as "Favorite". You can create your personal formats bar out of the video and audio extensions to which you convert data most of all.
convert avi to mp4 on windows (thumbnail) сlick to enlarge
4

Set final MP4 file settings

When you click the "to MP4" output format, there will appear a window where you can set the final MP4 clip parameters. First of all, choose the media quality that you need. If you want to keep everything "as is" without losing video quality after the conversion, select "Same as source" option. Keep in mind, that you have a video file in a non-HD resolution; you can’t select HD or Full HD quality.

Then you need to choose the video codec: MPEG-4 or h.264. Most ready presets go with the second option. However, if you need strictly MPEG-4 codec, you can change the parameters by creating your own MP4 profile. Use the cogwheel button to open the settings & change video resolution, frame rate, sample rate, bitrate, audio codec, and other settings. If necessary, limit the output video file size, and the software will automatically change & suit all the conversion parameters to that value.

In case you want to upload the ready MP4 movies onto your website & share online, mark the option to generate a ready code for your page at the end of the conversion.

One more option for the output video: you may add subtitles downloaded from the Internet. Find the respective option in the main freeware window.
fast conversion tool from avi to mp4 (thumbnail) сlick to enlarge
5

Convert AVI to MP4 format free

Finally, select a folder for your MP4 clips. It’s not necessary to save files on a PC; you can choose your cloud drive folder or a USB flash drive as a destination path for encoding.

When everything is ready, click the "Convert" button and convert your AVI files to MP4 with the best quality. The file conversion process may take some time depending on your PC capacity.

Optional! After your MP4 movies are ready, you can start watching them on a PC or transfer to a portable gadget. We recommend you to play the converted file in a standard media player on your computer. For example, Windows Media Player or VLC are ideal for most multimedia playback.
save AVI as MP4 on PC (thumbnail) сlick to enlarge
Now it’s your turn to try!
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To say even more:

Why should you convert AVI to MP4?


Both Audio Video Interleave (aka AVI) and MPEG-4 Part 14 (or simply MP4) are quite popular and similar video file formats. The main difference is the type of video codec that is used to encode a video and, thus, a method of file compression. Though it might be one and the same codec (H.264). However, the AVI container is hard to reproduce on most mobile devices. It can't be streamed as well. So it's advisiable to convert AVI to MP4 if you plan to watch a video on a portable device or stream it online on your site.

To see the difference between AVI and MP4 formats, please have a look at the table below:

Video parameter AVI MP4
Developer Microsoft MPEG
Supported video codecs H.264, Xvid, DivX, MPEG-4 MPEG-1, MPEG-2, MPEG-4, H.264/AVC, H.265/HEVC, WMV/VC-1, Real Video, Theora, VP8, VP9, MVC
Supported audio codecs MP3, AC3, PCM, Dolby Digital, DTS, LPCM MP3, AC3, Dolby Digital
Maximum resolution 1080x1920 2048x2048
Streaming not supported supported
Compatible devices PC, Microsoft devices, Games consoles PC, Mac, iPhone, iPad, Android, etc.
Supported players Windows-based players Almost all media players


How to convert AVI to MP4 on Windows 10?


Freemake Converter works pretty well on the recent Microsoft Windows platforms. So if you need to convert your AVI files to MP4 format on Windows 10, download the freeware here and follow the steps below:

  • Run the freeware on your Windows computer & add the AVI file you want to turn to MP4;
  • Find the needed output container on the formats bar and select the profile parameters;
  • Press the "Convert" button and wait a bit. Then you will be able to transfer your converted MP4 video onto other gadgets.

How to convert AVI to MP4 on Mac?


Since Freemake AVI to MP4 Converter is not available for Mac, you will need to use software that is compatible with Mac computers. We recommend HandBrake. It’s a free tool that will help you transcode AVI files to MP4 output format on Mac. It comes pre-installed on some old Macs. If you don’t have HandBrake on your Mac, download it from the official website. Install the software on your Mac and run it. Click "Source – Video File" and add your AVI files that you want to change to MP4 extension. Now set a destination folder and finally one of the presets from the right column. If you need an MP4 file for a particular Apple gadget, choose it from the list of supported media or select "Universal" to transform the video file "as is." Click "Start" to start converting AVI files to MP4 format on Mac.

How to convert AVI to MP4 in batch?


If you have multiple AVI data, you can convert them all with Freemake at once. You can add both online and offline AVI movies. Use "+Video" button for offline videos and "Paste URL" for the online files. Choose "to MP4", select quality and click "Convert." We recommend choosing "Same as source" preset to convert AVI to MP4 with the original audio and video quality.

How to convert AVI to MP4 online on a mobile phone?


In case you don't want to install a free software to convert your files, you may use our online video converter to do the same job on your mobile device. Please note that for desktop PCs,we still recommend installing the offline converter for faster results.

To convert AVI to MP4 online, please follow the steps:
  • use the link above to proceed to the online tool;
  • upload your AVI file using the "Select file" button;
  • choose MP4 as the output format and press "Convert now";
  • wait a bit while the file is being processed.

Is it possible to convert AVI to MP4 with iTunes?


iTunes is installed on many desktop computers to synchronize video and audio files with Apple devices. Since iTunes only accepts MOV, MP4, and M4V video formats, it is not possible to convert AVI video with it. To do such conversions, you'd better use Freemake software & follow the steps above. The tool will convert AVI to MP4 and automatically add your output video to iTunes media library after conversion.

Other tutorials:

Freemake Video Converter
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