Convert AVI to WMV online in seconds — free, with no sign-up. WMV is lossy and ideal for legacy Windows video; converted to MP4 for sharing. Your files are encrypted and deleted automatically after 24 hours.
AVI
Audio Video Interleave — An older Microsoft container with large file sizes and limited modern support.
WMV
Windows Media Video — A Microsoft format with limited support outside Windows.
How to convert AVI to WMV
- 1Upload your AVI file
Click “Choose a file” or drag and drop your AVI file onto the page — no sign-up or email needed.
- 2Convert to WMV
WMV is already selected as the output. Open Options to fine-tune quality if you like, then click Convert.
- 3Download your WMV file
Your WMV file is ready in seconds — click Download to save it. Files are automatically deleted after 24 hours.
AVI vs WMV
| AVI | WMV | |
|---|---|---|
| Full name | Audio Video Interleave | Windows Media Video |
| Type | Video | Video |
| Compression | Lossy | Lossy |
| Best for | legacy video; usually converted to MP4 or WebM | legacy Windows video; converted to MP4 for sharing |
Frequently asked questions
Does converting AVI to WMV lose quality?
Both AVI and WMV use compression, so re-encoding discards a little more data. For a single conversion the change is virtually invisible; just avoid repeatedly re-converting the same file.
What's the difference between AVI and WMV?
Audio Video Interleave (AVI) is lossy and best for legacy video; usually converted to MP4 or WebM. Windows Media Video (WMV) is lossy and best for legacy Windows video; converted to MP4 for sharing. Convert AVI to WMV when you need a video for legacy Windows video.
Is the AVI to WMV converter free?
Yes — converting AVI to WMV is completely free. There's no watermark, no sign-up and no email required, and you can convert as many files as you like.
Are my AVI files private and secure?
Yes. Your uploads are encrypted in transit, processed privately, and automatically deleted within 24 hours. We never share, sell or look at your files.
Can I convert AVI to WMV on iPhone, Android, Mac or Windows?
Yes. The converter runs entirely in your browser, so it works on any device — iPhone, iPad, Android, Mac, Windows or Linux — with nothing to download or install.
How long does it take to convert AVI to WMV?
Most files convert in a few seconds. Larger files take a little longer, and your upload speed is usually the limiting factor. There's no queue and no waiting for an email.
What else can I convert AVI files to?
Besides WMV, you can convert AVI to AAC, FLAC, FLV, GIF, JPG, M4A and more — see the full list of AVI conversions below.
Other conversions
Last updated July 2026