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

FAQs

Which web browsers support image/jxr?

Native browser support for image/jxr is very limited, primarily restricted to Internet Explorer and legacy versions of Microsoft Edge. Most modern browsers, such as Chrome, Firefox, and Safari, do not support this format natively and prefer alternatives like WebP or AVIF.

How do I configure Apache or Nginx to serve JXR files?

For Apache, add AddType image/jxr .jxr .wdp to your .htaccess or config file. For Nginx, include image/jxr jxr wdp; inside the types { } block in your mime.types file or server configuration.

What file extensions are associated with image/jxr?

The most common extensions are .jxr and .wdp. The format also uses .hdp (HD Photo) and .wmp (Windows Media Photo), reflecting its history as a Microsoft-developed standard.

What are the advantages of using JXR over standard JPEG?

Unlike standard JPEG, JPEG XR supports transparency (alpha channels) and High Dynamic Range (HDR) imaging. It also offers more efficient compression, allowing for smaller file sizes while maintaining higher quality, similar to modern formats found on mime-type.com.

Is image/jxr the same as image/vnd.ms-photo?

They refer to the same underlying file format, but image/jxr is the standardized MIME type. The type image/vnd.ms-photo was used historically when the format was known as Windows Media Photo or HD Photo before standardization.

How can I view a JXR file if my browser displays a broken image?

If your browser cannot render the image, you can download the file and open it with image viewers like XnView, IrfanView, or Adobe Photoshop (with the appropriate plugin). Alternatively, you can convert the file to a standard PNG or JPEG using online tools.

General 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.