What is MIME type "image/vnd.net-fpx"?

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

image/vnd.net-fpx is a MIME type that denotes a FlashPix image format. It was designed to store high-resolution images for fast editing and previewing.
FlashPix organizes image data into several resolution levels. This allows programs to quickly load a lower-resolution version for a preview. When you zoom in, the full-resolution data is used instead.
Files using this format are typically linked to the NPX extension.

Efficient Viewing: Displays a quick preview by loading a lower resolution first.
Image Editing: Stores multiple resolutions to maintain quality during edits.
Legacy Support: Was favored in early digital photography and scanning applications.

FlashPix was more common before formats like JPEG2000 and modern image handling techniques emerged. For a broader history and technical background, see FlashPix on Wikipedia.

Associated file extensions

.npx

Usage Examples

HTTP Header

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


    Content-Type: image/vnd.net-fpx

HTML

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


    <a href="file.dat" type="image/vnd.net-fpx">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', 'image/vnd.net-fpx');
      res.end('Content here');
    }).listen(3000);

Associated file extensions

.npx

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.