What is MIME type "application/x-futuresplash"?

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

application/x-futuresplash is a MIME type for files produced by the Macromedia FutureSplash system.
It tells your computer or browser how to handle and render these files, which contain vector animations and interactive multimedia content.
Files using this type usually have the SPL extension.

Main use: Delivering animated and interactive content on web pages.
Functionality: Encodes vector graphics and multimedia instructions for rendering animations.
Historical use: Was popular in early dynamic websites and helped pave the way for newer technologies like Adobe Flash.

It ensures that any software receiving these files knows to process them as multimedia animation data.
Some legacy applications still support this format.
Learn more about media types at this reference.

Associated file extensions

.spl

Usage Examples

HTTP Header

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


    Content-Type: application/x-futuresplash

HTML

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


    <a href="file.dat" type="application/x-futuresplash">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/x-futuresplash');
      res.end('Content here');
    }).listen(3000);

Associated file extensions

.spl

FAQ

What is a MIME type?

A MIME (Multipurpose Internet Mail Extensions) type is a standard that indicates the nature and format of a document, file, or assortment of bytes. MIME types are defined and standardized in IETF's RFC 6838.

MIME types are important because they help browsers and servers understand how to process a file. When a browser receives a file from a server, it uses the MIME type to determine how to display or handle the content, whether it's an image to display, a PDF to open in a viewer, or a video to play.

MIME types consist of a type and a subtype, separated by a slash (e.g., text/html, image/jpeg, application/pdf). Some MIME types also include optional parameters.

How do I find the MIME type for a file?

You can check the file extension or use a file identification tool such as file --mime-type on the command line. Many programming languages also provide libraries to detect MIME types.

Why are multiple MIME types listed for one extension?

Different applications and historical conventions may use alternative MIME identifiers for the same kind of file. Showing them all helps ensure compatibility across systems.