Convert AVI to MP4 Online

Upload an AVI video from older software and select MP4 as the output. Converter processes the file online and gives you a broadly supported video for sharing.

Choose a file to convert

How to convert avi to mp4

  1. Upload a .avi file.
  2. Choose MP4 and start the conversion.
  3. Download the MP4 result.

Example

Upload legacy-video.avi and download legacy-video.mp4.

When to use this conversion

  • Modernize an AVI clip from an older camera or application.
  • Share an MP4 video with a teammate or upload it to a compatible platform.
  • Keep the original video while creating a distribution copy.

Best practices

  • Keep the original video; transcoding cannot improve source quality.
  • Check playback, audio sync, and duration in the converted file.
  • Large or long videos can take longer to process and may produce a larger file.