Convert file AVI to MP4

AVI is an acronym for Audio Video Interleave, a container of video and audio developed by Microsoft in 1991 for multimedia content and then put on the market in 1992.

It can be decoded with special programs that can be downloaded from the web, but if you only need to decode a few AVI files it is advisable to use online decoders.

This is the best decoder that has no time or size limits, it's not very fast but it's free and works well:

AVI to MP4 Converter – 100% Free 

Enjoy your conversions!