How to use the AVI converter
- Choose a file. Drop an AVI file to convert it to something else, or any other video to convert it to AVI.
- Check "Convert to". The converter picks MP4 for AVI files and AVI for everything else; change it if you need something different.
- Adjust quality if you want a smaller or higher-quality file.
- Click Convert and download the result.
What is an AVI file?
AVI is one of the oldest video containers, introduced by Microsoft with Windows 3.1 in 1992. Older digital cameras, DVD rips and many 2000s downloads are AVI files, usually with DivX or XviD video and MP3 sound.
AVI is mainly used for older camera clips, legacy video archives and Windows software. It plays on Windows Media Player, VLC and most desktop players; phones and browsers often refuse AVI.
AVI at a glance
| Full name | Audio Video Interleave |
|---|---|
| Type | Video |
| Created by | Microsoft, 1992 |
| Compression | Lossy |
| Typical codecs | MPEG-4 Part 2 (DivX/XviD) + MP3 |
| Can be created here | Yes |
Pros and cons of AVI
Good
- Very widely supported on Windows
- Simple and well-understood format
Not so good
- Large files compared with modern formats
- No real support for modern codecs, subtitles or streaming
- Will not play in browsers or on iPhone
Common AVI problems and fixes
An AVI will not play on a phone or in a browser
Convert it to MP4 for universal playback.
An old AVI is huge
Converting to MP4 with H.264 often makes it several times smaller at the same quality.
Popular AVI conversions
Frequently asked questions
How do I open an AVI file?
AVI files play on Windows Media Player, VLC and most desktop players; phones and browsers often refuse AVI. If yours will not open, convert it to MP4 on this page; that format plays on any device.
How do I convert a file to AVI?
Drop any video on this page. "Convert to" is set to AVI automatically for files that are not AVI already.
How much does the AVI converter cost?
Nothing. It is free with no registration, no watermark and no limit on how many files you convert.
Is my file uploaded to a server?
No. The converter runs inside your browser using WebAssembly, so your file is processed on your own device and never sent to us or anyone else.
Is AVI lossy?
Yes, AVI normally uses lossy compression, which removes detail you are unlikely to notice to keep files small.