What is MIME type "image/x-bpg"?

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

image/x-bpg is the MIME type for the Better Portable Graphics format. It defines how files with this format are treated by browsers and applications. Files with this type are compressed images that aim to deliver high quality at small sizes. See BPG for more details on the file extension.

Its main purpose is to provide an image format that uses modern data compression techniques based on HEVC (High Efficiency Video Coding). This allows for better visual quality with less disk space compared to older formats.

The format is experimental. Many systems might require conversion to more common formats for full compatibility.

Associated file extensions

.bpg

Usage Examples

HTTP Header

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


    Content-Type: image/x-bpg
  

HTML

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


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

Associated file extensions

.bpg

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.