.avi MIME type
AVI videovideo
video/x-msvideoLegacy Windows video container. Browsers can't play AVI.
| MIME type | video/x-msvideo |
|---|---|
| Extensions | .avi |
| Content-Type | video/x-msvideo |
| Compress in transit? | No — already compressed |
| File signature | 52 49 46 46 xx xx xx xx 41 56 49 20 (RIFF....AVI ) |
Good to know
- Convert to MP4 or WebM before publishing.
Serve .avi files with the right type
The response header to send:
Content-Type: video/x-msvideo
Most servers pick the type from the file extension. If yours sends the wrong one, map it explicitly:
nginx (inside the types block in mime.types)
video/x-msvideo avi;
Apache (.htaccess or server config)
AddType video/x-msvideo .avi
Express
res.set("Content-Type", "video/x-msvideo");Python
import mimetypes
mimetypes.add_type("video/x-msvideo", ".avi")HTML file input
<input type="file" accept=".avi,video/x-msvideo">
Check it
See what a server sends for a file, and what type a local file really is by its contents:
curl -sI https://example.com/file.avi | grep -i '^content-type:' file --mime-type file.avi
Frequently asked questions
What is the MIME type for .avi files?
video/x-msvideo.
What Content-Type header should a .avi file be served with?
Content-Type: video/x-msvideo. It's already compressed, so servers shouldn't gzip it.
How can I tell if a file is really a .avi?
Check its bytes rather than the extension: AVI files start with 52 49 46 46 xx xx xx xx 41 56 49 20 (RIFF....AVI ). On the command line, file --mime-type name.avi does this for you.
Related types
Headers that go with it: Content-Type · Content-Disposition · X-Content-Type-Options