What is MIME type "image/jxr"?

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

The image/jxr MIME type marks a modern image format known as JPEG Extended Range. It uses advanced compression to deliver high-quality images with smaller file sizes.

It supports both lossy and lossless methods. This means you can keep every detail or opt for a smaller file size when needed.

The format handles a wide color gamut and high dynamic range imaging. It also supports transparency (alpha channels). These features help maintain rich details and smooth gradients.

Files using this format include WDP, JXR, WMP, and HDP.

Main use: Displaying and storing high-quality images in digital media.
Other uses: Digital photography, media streaming, and graphic design.
Key fact: Provides efficient compression without sacrificing image detail.

Associated file extensions

.wdp, .jxr, .wmp, .hdp

Usage Examples

HTTP Header

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


    Content-Type: image/jxr

HTML

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


    <a href="file.dat" type="image/jxr">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/jxr');
      res.end('Content here');
    }).listen(3000);

Associated file extensions

.wdp, .jxr, .wmp, .hdp

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.