What is MIME type "application/smil"?

A MIME type is a string that tells browsers and other tools how to handle a particular kind of file.

application/smil is the MIME type for files that use SMIL. SMIL stands for Synchronized Multimedia Integration Language and it helps create timed multimedia presentations. It sets rules for how audio, video, images, and text are coordinated in time.

Common use cases include:

• Multimedia slide shows with timed transitions
• Interactive presentations that mix audio, video, and images
• Web-based broadcasts that require synchronized playback
• Animations where layers of media overlap and interact

Files with this MIME type often come in the form of SMI, SMIL, or SML formats.
This format is supported by various media players, web browsers, and broadcasting systems.
For more technical details, check out the SMIL documentation.

Associated file extensions

.smi, .smil, .sml

Usage Examples

HTTP Header

When serving content with this MIME type, set the Content-Type header:

    Content-Type: application/smil
  

HTML

In HTML, you can specify the MIME type in various elements:

    <a href="file.dat" type="application/smil">Download file</a>
  

Server-side (Node.js)

Setting the Content-Type header in Node.js:

    const http = require('http');
    
    http.createServer((req, res) => {
      res.setHeader('Content-Type', 'application/smil');
      res.end('Content here');
    }).listen(3000);
  

Associated file extensions

.smi, .smil, .sml