Convert AVI to MP4
Fast, free AVI to MP4 conversion — works in any browser
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avi
Audio Video Interleave: video and audio data compressed using different combinations of codecs
| File extension | .avi |
|---|---|
| File category | video |
| Programs | Windows Media Player VLC media player MPV Kodi MPlayer |
| Tech description | https://en.wikipedia.org/wiki/Audio_Video_Interleave |
| MIME type | video/avi video/x-msvideo |
| Developer | Microsoft Corporation |
This is one of the most famous video and audio formats. Developed by Microsoft Corporation, the Audio Video Interleave format was released in 1992. It is supported by virtually all video players. AVI plays the sound and video simultaneously and is suitable for any browser. The compression process involves a variety of codecs. This format is very popular among users. Audio Video Interleave files can also be opened using Windows Media Player.
mp4
The format within the MPEG-4 Part 14 standard
| File extension | .mp4 .m4v |
|---|---|
| File category | video |
| Programs | VLC media player Windows Media Player Apple QuickTime Player MPV Kodi |
| Tech description | https://en.wikipedia.org/wiki/MPEG-4_Part_14 |
| MIME type | video/mp4 |
| Developer | MPEG group (ISO/IEC) |
Created in 1988, it was intended for video files. A file of this format contains video and audio information, images and subtitles. When compressed, the files do not lose quality. The format includes various types of multimedia content: videos, animations, audio, 2D and 3D graphics. Files of this format can be used and viewed on the Internet. In this case, a metadata transfer takes place. The full name of the format is MPEG-4 Part 14.
FAQ
How to convert MP4 to AVI?
Upload your MP4 file, select AVI as the output format, and click Convert. The converted file will be ready to download in seconds — no account or installation required.
How long does it take to convert MP4 to AVI?
Most MP4 files convert in seconds. Larger files may take up to a few minutes depending on size and internet speed. You can track the progress bar in real time during conversion.
Is it safe to convert MP4 files online?
Yes. All uploaded MP4 files and converted AVI results are automatically deleted from our servers within 1 hour after conversion. We do not store, share, or access your files.
Can I convert MP4 on iPhone or Android?
Yes, our converter works on all devices and operating systems — iPhone, iPad, Android, Windows, and macOS. Open the site in your mobile browser, upload the MP4 file and convert to AVI without installing any app.
