What is an AVI file?

The AVI format in brief: what it is, what it is used for, and how to convert it.

AVI: conversion steps

  1. Upload your AVI file to start.
  2. Convert AVI to 3GP.
  3. Download the AVI file.

About AVI files

Microsoft's older Windows video container

AVI (Audio Video Interleave) is a container format Microsoft introduced in 1992 for video on Windows.

Older cameras, Windows software and video collections from the 1990s and 2000s.

AVI: what conversion changes

Converting AVI re-encodes video.

AVI: settings to change

Before you convert AVI files, you can adjust: Video codec, Audio codec, Frame rate, Rate control, Width, Quality (CRF), Audio bitrate, Video bitrate, Quality (VBR), Resolution, Sample rate, Colours, Channels, Height, Scale fit, Normalize loudness, Dithering, Encoder preset, Trim start, Trim duration, Keep tags, and Remove metadata.

Limits of the AVI format

AVI predates modern codecs and has no native support for features such as variable frame rate, so it is rarely used for new video.

Common questions about AVI

Why is my AVI file so much bigger than modern video? The container predates efficient codecs like H.264, so an hour of video can take many gigabytes that an MP4 would store in a fraction of the space.

Why convert video to AVI today? Mainly for older Windows software and DVD-era players that accept nothing else.

Convert AVI files

Guides and tools for AVI